How to use Concentrated in a sentence
Bianca concentrated on the strange pain.
She concentrated on the shirt.
He concentrated on encouraging the stubborn horse to head back the way they came.
Instead of responding, she concentrated on pulling his energy into her body then pushed it back.
If she concentrated on the here-and-now and dealt with the aftermath later, she might survive this experience.Advertisement
Anger seized me, my fingers refused to move, I sat rigid for one long moment, the blood throbbing in my temples, and all the hatred that a child can feel concentrated in my heart.
Finally I noticed a very obvious error in the sequence and for an instant I concentrated my attention on the lesson and tried to think how I should have arranged the beads.
He made no further comment and concentrated on his supper.
She concentrated as hard as she could, listening for his body to speak to her.
Yully concentrated on the small itch in her mind that told her Jule was near.Advertisement
She closed her eyes and concentrated again.
They moved to the next table and Carmen concentrated on the clips, contemplating how to bring up the subject and finally deciding there was no best way, so she simply asked.
By heating a mixture of cobalt oxalate and sal-ammoniac in air, it is obtained in the form of minute hard octahedra, which are not magnetic, and are only soluble in concentrated sulphuric acid.
His scent and heat, the warmth of his magic, the heady sensations of being so close to him … She concentrated on placing her feet and not on his body.
Skin clammy with nervous sweat, Deidre concentrated on taking deep breaths.Advertisement
One of the soldiers blasted it with concentrated laser.
Instead, she concentrated on figuring out what knowledge she could about the souls in the lake.
The glossy color photo displayed a concentrated young woman, hand-climbing upside down, across a rock face that looked devoid of any hint of a hand hold.
They are of a reddish colour and usually crystallize well; on heating with concentrated acids are usually transformed into the purpureo-salts.
Concentrated hydrochloric acid converts it into oxamide.Advertisement
It is soluble in concentrated sulphuric acid with a green colour.
It said then concentrated on holding onto the book.
He handed the demon a small pouch that contained the concentrated magic of Hell. One pouch wasn't enough to break through Death's weakened barriers, but three would.
Sofi concentrated on stepping through the rubble of what looked like a once-great city.
With the air cleared of all the secrets, and both of them making a concentrated effort to get along, even the children appeared to be happier.Advertisement
The pentammine roseo-salts can be obtained from the action of concentrated acids, in the cold, on airoxidized solutions of cobaltous salts.
Public attention, however, was chiefly concentrated on foreign policy.
The force of the universe is swept up and gathered in God, who communicates motion to the parts of extension, and sustains that motion from moment to moment; and in the same way the force of mind has really been concentrated in God.
It is a crystalline body, soluble only in concentrated alcohol.
The alkaloid is obtained from an aqueous extract of tobacco by distillation with slaked lime, the distillate being acidified with oxalic acid, concentrated to a syrup and decomposed by potash.
In the 15th century power was at last concentrated in the Baglioni family, who, though they had no legal position, defied all other authority.
In the Korn apparatus the light from a Nernst electric lamp is concentrated to a point by means of a lens on the original picture, which is wound on a glass cylinder in the shape of a transparent photographic film.
At the receiving station a cylinder - which revolves synchronously with the transmitting cylinder - is covered with a photographic film or paper, upon a point of which a pencil of light from a Nernst lamp is concentrated.
With the help of a strong detachment of officers and men from the Atlantic coast he equipped a squadron consisting of one brig, six fine schooners and one sloop. Other vessels were laid down at Presque Isle (now Erie), where he concentrated the Lake Erie fleet in July.
Cadmium sulphate, CdSO 4, is known in several hydrated forms; being deposited, on spontaneous evaporation of a concentrated aqueous solution, in the form of large monosymmetric crystals of composition 3CdSO 4.8H 2 O, whilst a boiling saturated solution, to which concentrated sulphuric acid has been added, deposits crystals of composition CdSO 4 4H 2 0.
Both crude and concentrated lime-juice is exported, and essential oils are extracted from the rind of the agrumi, more particularly from that of tile lemon and the berganlot.
The jute industry is concentrated in a few large factories, which from 1887 onwards have more than supplied the home market, and have begun considerably to export.
Textile, building and mining industries show the highest percentage of strikes, since they give employment to large numbers of men concentrated in single localities.
All reasonable men were now convinced that the question of the ultimate form of the Italian government was secondary, and that the national efforts should be concentrated on the task of expelling the Austrians; the form of government could be decided afterwards.
First of all, attention has been concentrated upon God.
On this accordingly Socrates concentrated his efforts.
I feel all my best faculties concentrated in it.
Every army is composed of lower grades of the service--the rank and file--of whom there are always the greatest number; of the next higher military rank--corporals and noncommissioned officers of whom there are fewer, and of still-higher officers of whom there are still fewer, and so on to the highest military command which is concentrated in one person.
In the polyp the nervous tissue is always in the form of a scattered plexus, never concentrated to form a definite nervous system as in the medusa.
The nervous system of the medusa consists of sub-epithelial ganglion-cells, which form, in the first place, a diffuse plexus of nervous tissue, as in the polyp, but developed chiefly on the subumbral surface; and which are concentrated, in the second place, to form a definite central nervous system, never found in the polyp. In Hydromedusae the central nervous system forms two concentric nerverings at the margin of the umbrella, near the base of the velum.
The sense-cells form, in the first place, a diffuse system of scattered sensory cells, as in the polyp, developed chiefly on the manubrium, the tentacles and the margin of the umbrella, where they form a sensory ciliated epithelium covering the nerve-centres; in the second place, the sense-cells are concentrated to form definite sense-organs, situated always at the margin of the umbrella, hence often termed " marginal bodies."
It is soluble in dilute nitric acid, and in concentrated sulphuric acid; in the XVIII.
Molybdenum monoxide, MoO.n(H 2 O), is a black powder obtained when the dichloride is boiled with concentrated potash solution.
Phenol dissolves readily in concentrated sulphuric acid, a mixture of phenol-orthoand -para-sulphonic acids being formed.
If concentrated, however, it acts as a caustic. It never produces vesication.
If it be absorbed from a surgical dressing there are no irritant symptoms, but when the acid is swallowed in concentrated form, symptoms of gastro-intestinal irritation occur.
Coprolite is reduced to powder by powerful mills of peculiar construction, furnished with granite and buhrstones, before being treated with concentrated sulphuric acid.
The population of the Pernambuco sertao has always been noted for its turbulent, lawless character, due partly to distance from the coast where the bulk of the population is concentrated, partly to difficult means of communication, and partly to the fact that this remote region has long been the refuge of criminals from the coast towns.
To obtain pure sulphuretted hydrogen the method generally adopted consists in decomposing precipitated antimony sulphide with concentrated hydrochloric acid.
It combines directly with concentrated sulphuric acid to form pyrosulphuric acid, H 2 S 2 0 7.
This acid may also be prepared by the electrolysis of concentrated sulphuric acid, and it is distinguishable from persulphuric acid by the fact that it immediately liberates iodine from potassium iodide.
The nervous system is remarkably concentrated in some beetles, the abdominal ganglia showing a tendency to become shifted forward and crowded together, and in certain chafers all the thoracic and abdominal ganglia are fused into a single nervecentre situated in the thorax, - a degree of specialization only matched in the insectan class among the Hemiptera and some muscid flies.
The Lithuanians prevail in Kovno, Vilna and Suwalki; and the Letts, who are, however, more scattered, are chiefly concentrated in Vitebsk, Courland and Livonia.
At first he concentrated his attention on foreign affairs.
Twenty years of experience and observation had revealed the defects of the earlier legislation, and had concentrated public attention more intelligently than ever before upon the problem of strengthening the weak spots.
In considering the forces that produce derailment the total mass of the vehicle or locomotive may be supposed to be concentrated at its centre of gravity.
With a steam locomotive all the power is concentrated in one machine, and therefore the weight on the drivers available for adhesion is limited.
Hubert and Mauss interpret this to mean that the sanctity of the remainder of the herd was concentrated on a single animal; the god, incarnate in the herd, was eliminated by the sacrifice, and the cattle saved from the dangers to which their association with the god exposed them.
It is only, however, when we deal with comparatively concentrated solutions that the heat-effect of diluting the solutions is at all great, the heat-change on diluting an already dilute solution being for most practical purposes negligible.
Thus if concentrated instead of dilute sulphuric acid acts upon zinc, the action takes place to a great extent not according to the equation given above, but according to the equation Zn +2H 2 SO 4 = ZnS04+S02+2 H20, sulphur dioxide and water being produced instead of hydrogen.
Tradition, in fact, is concentrated upon the rise of the Judaean dynasty under David, but there are significant periods before the rise of both Jehoash and Uzziah upon which the historical records maintain a perplexing silence.
Tradition concentrated upon Ezra and his age many events and changes of fundamental importance.
French Judaism was thus in a sense more human if less humane than the Spanish variety; the latter produced thinkers, statesmen, poets and scientists; the former, men with whom the Talmud was a passion, men of robuster because of more naïve and concentrated piety.
At present more than half of the Dutch Jews are concentrated in Amsterdam, being largely engaged in the diamond and tobacco trades.
Greece was at the same time summoned to remove its army and fleet from the island, while the Turkish troops were to be concentrated in the fortresses and eventually withdrawn.
On the whole the ganglia are strongly individualized in the Pectinibranchia, nerve-cell tissue being concentrated in the ganglia and absent from the cords.
Pallial cavity transformed into a lung; pedal centres concentrated; a deep pedal groove.
They are all pelagic, the foot being entirely transformed into a pair of anterior fins; eyes are absent, and the nerve centres are concentrated on the ven tral side of the oesophagus.
Visceral commissure reduced; nervous system concentrated on dorsal side of oesophagus.
The solution obtained is neutralized, concentrated on the water-bath, acidified by sulphuric acid and extracted with ether.
On each occasion, no doubt, some of the refugees remained behind in the islands, and gradually built and peopled the twelve lagoon townships, which formed the germ of the state of Venice and were subsequently concentrated at Rialto or in the city we now know as Venice.
The manufacture of small-arms is concentrated at Ferlach.
Commercial interests are largely concentrated in East Boston.
The petroleum industry in Canada is mainly concentrated in the district of Petrolea, Ontario.
As to the detergent action of a soap, Berzelius held that it was due to the free alkali liberated with water; but it is difficult to see why a solution which has just thrown off most of its fatty acids should be disposed to take up even a glyceride, and, moreover, on this theory, weak cold solutions, in which the hydrolysis is considerable, should be the best cleansers, whilst experience points to the use of hot concentrated solutions.
Being thus soluble in salt water it cannot, of course, be salted out like common soaps; but if a very concentrated salt solution is used precipitation is effected, and a curd soap is separated so hard and refractory as to be practically useless.
The silicate in the form of a concentrated solution is crutched or stirred into the soap in a mechanical mixing machine after the completion of the saponification, and it appears to enter into a distinct chemical combination with the soap. While silicate soaps bear heavy watering, the soluble silicate itself is a powerful detergent, and it possesses certain advantages when used with hard waters.
The population is concentrated in a few small towns on the rivers and in some colonies, established by the national government to check Chilean invasions, in the fertile districts of the Andes.
The linen industry is concentrated at Schonberg, Mistek, Wiesenberg and Heidenpiltsch; while the cotton industry has its principal seat at Sternberg.
The attention of many students has naturally been concentrated on the ancient city, the birthplace of European art and literature, and a great development of investigation and discussion in the special domain of Athenian archaeology has given birth to a voluminous literature.
Its solution in concentrated sulphuric acid is of a yellow colour and shows a marked blue fluorescence.
In place of the relative molecular weights, attention was concentrated on relative atomic or equivalent weights.
But in music he had no more to learn, and Parsifal, while the most solemn and concentrated of all Wagner's dramas, is musically not always unsuggestive of old age.
It is resinified by the action of concentrated mineral acids.
On boiling with concentrated nitric acid it yields picric acid.
Salicylic acid is a powerful irritant when inhaled or swallowed in a concentrated form, and even when much diluted it causes pain, nausea and vomiting.
After these events the Obbia line of communication was closed up, and Manning's force concentrated at Bohotle.
In one Asura, whose Aryan original was Varuna, he concentrated the whole of the divine character, and conferred upon it the epithet of "the wise" (mazdao) .
The tobacco industries are very largely concentrated in Havana, and there are factories in Santiago de las Vegas and Bejucal.
Ketoximes are usually rather more difficult to prepare than aldoximes, and generally require the presence of a fairly concentrated alkaline solution.
The a-oxime, on long continued boiling with a concentrated solution of a caustic alkali, is partially decomposed with formation of some acetone and acetoxime (C. Harries, Ber., 1898, 31, pp. 1381, 1808; 18 99, 32, p. 1 33 1).
It is also formed by the action of concentrated sulphuric acid on sodium nitrite in the presence of mercury.
It is exceedingly soluble in concentrated sulphuric acid.
The silver salt is a bright yellow solid, soluble in dilute sulphuric and nitric acids, and may be crystallized from concentrated solutions of ammonia.
About the 10th of November this force commenced its advance, and Napoleon concentrated in such a manner that within three days he could bring over 80,000 French troops into action around Briinn, besides 17,000 or more Bavarians under Wrede.
The whole army, upwards of 120,000 men, could therefore have - been concentrated against Lannes and Augereau by the afternoon of the 13th, whilst Soult could only have intervened very late in the day, and Davout and Bernadotte were still too distant to reach the battlefield before the 14th.
Apparently seeing in this movement a recommencement of hostilities, Bennigsen concentrated his troops towards his right and commenced an advance westwards.
On his return from Spain, seeing war imminent, he issued a series of march orders (which deserve the closest study in detail) by which on the 15th of April his whole army was to be concentrated for manoeuvres between Regensburg, Landshut, Augsburg and Donauwbrth, and sending on the Guard in wagons to Strassburg, he despatched Berthier to act as commander-in-chief until his own arrival.
In this manner by the end of March upwards of 200,000 men were moving towards the Elbe,' and in the first fortnight of April they were duly concentrated in the angle formed by the Elbe and Saale, threatening on the one hand Berlin, on the other Dresden and the east.
Meanwhile the Russians and Prussians had concentrated all available men and were moving on an almost parallel line, but somewhat to the south of the direction taken by the French.
Then hearing that the Austrians had counter-marched and were again moving towards Dresden, he hastened back there, concentrated as many men as could conveniently be handled, and advanced beyond Pirna and KOnigstein to meet him.
On the 15th Napoleon concentrated his forces to the east of Leipzig, with only a weak detachment to the west, and in the evening the allies were prepared to attack him.
The problem was to bring them together before the British fleet could be concentrated to meet them.
He hoped that if the British ships in the North Sea concentrated with the squadron in the Channel, he would be able to make use of Dutch vessels from the Texel.
The allied army, raised by the junction of the Spanish troops in Galicia to 90,000, now concentrated near Toro, and moved towards the Pisuerga, when Joseph, blowing up the castle of Burgos, fell back behind the Ebro.
Wellington's object in this was at once attained, for Soult, leaving only 10,000 men in Bayonne, came out and concentrated at Orthes on the Pau.
In this neighbourhood is concentrated most of the Afghan army north of the Hindu Kush mountains, the fortified cantonment of Dehdadi having been completed by Sirdar Ghulam Ali Khan and incorporated with Mazar.
For certain concentrated solutions the transport number is found to be greater than unity; thus for a normal solution of cadmium iodide its value is I 12.
Solid copper chloride is brown or yellow, so that its concentrated solution, which contains both ions and undissociated molecules, is green, but changes to blue as water is added and the ionization becomes complete.
In the latter case, the tendency of the metal to dissolve in the more dilute solution is greater than its tendency to dissolve in the more concentrated solution, and thus there is a decrease in available energy when metal dissolves in the dilute solution and separates in equivalent quantity from the concentrated solution.
Solvent may be supposed to be squeezed out from the solution which has become more dilute through a semi-permeable wall, and through another such wall allowed to mix with the solution which in the electrical operation had become more concentrated.
It is a very stable compound, chlorine, concentrated nitric acid and hydriodic acid having no action upon it.
In 1833 Pattinson invented his process by means of which practically all the silver is concentrated in 13% of the original lead to be cupelled, while the rest becomes market lead.
Thus the level of the lead is kept approximately constant, and the silver becomes concentrated in the lead.
Boiling concentrated sulphuric acid converts lead into sulphate, with evolution of sulphur dioxide.
It dissolves in strong nitric acid with the formation of the nitrate and sulphate, and also in hot concentrated hydrochloric acid.
When heated with hydriodic acid and phosphorus it forms phenylacetic acid; whilst concentrated hydrobromic acid and hydrochloric acid at moderate temperatures convert it into phenylbromand phenylchlor-acetic acids.
A chain of forts to the eastward is designed to facilitate the deployment of an army, concentrated within the fortified region, towards the Belgian frontier.
It burns on heating in air; and is scarcely attacked by hydrochloric or nitric acids, or by aqua regia; it is soluble in warm concentrated sulphuric acid.
It burns when heated in air, and is soluble in warm concentrated sulphuric acid.
Subsequently the tramways of the city have been mostly concentrated in the hands of a single Canadian company.
Interest is no longer to the same extent concentrated on the one question of the universals.
The trade is chiefly concentrated at Urga, Ulyasutai and Kobdo in north-west Mongolia; Kalgan, Kuku-khoto, Kuku-erghi, Dolon-nur and Biru-khoto in southern and south-eastern Mongolia; and at Kerulen in the north-east.
The acid salts are obtained by the addition of one molecule of alkali to two molecules of the acid in concentrated alcoholic solution at a low temperature.
In Croatia-Slavonia only 5.62% of the population was concentrated in such towns in 1900.
During the winter of 1915 delegates of the Yugoslav Committee, with the Tsar's special permission, began enrolling volunteers from among the prisoners on the Russian front; and by March 1916 a division of 23,000 men had been concentrated at Odessa, and a second was formed later.
In each set of experiments he concentrated his attention on the one character selected for observation.
The larger the aperture the smaller are the angles through which it is necessary to deviate from the principal direction in order to bring in specified discrepancies of phase - the more concentrated is the image.
If the origin of light be treated as infinitely small, and be seen in focus, whether with the naked eye or with the aid of a telescope, the whole of the light in the absence of obstacles would be concentrated in the immediate neighbourhood of the focus.
If it were possible to introduce at every part of the aperture of the grating an arbitrary retardation, all the light might be concentrated in any desired spectrum.
The precipitate, after having been collected and washed, is digested with a warm concentrated solution of ammonium carbonate, which dissolves the uranium as a yellow solution of ammonium uranate, while the hydrated oxide of iron, the alumina, &c., remain.
By judicious use of the railway Kitchener concentrated sufficient troops in the colony to cope with the attempt, and, after being hunted for eighteen days, De Wet escaped back into the Orange River Colony with the loss of all his guns, munitions of war and half his force.
This salt is also formed by dissolving tin in strong hydrochloric acid and allowing it to crystallize, and is industrially prepared by passing sufficiently hydrated hydrochloric acid gas over granulated tin contained in stoneware bottles and evaporating the concentrated solution produced in tin basins over granulated tin.
Pelouze in 1838, who observed that when paper or cotton was immersed in cold concentrated nitric acid the materials, though not altered in physical appearance, became heavier, and after washing and drying were possessed of self-explosive properties.
It has been proved that the pyo-genic bacterial toxins, if not too concentrated, will attract the polymorpho-nuclear leucocytes, but if concentrated, may have a repelling influence.
Loeb found experimentally that increase of metabolic products in muscle greatly raised its osmotic pressure, and so it would absorb water from a relatively concentrated sodium chloride solution.
In fact the free Greek cities and communities, in both Sicily and southern Italy, were sacrificed to Syracuse; there the greatness and glory of the Greek world in the West were concentrated.
It had always been assumed during previous discussions on the question that warships adventuring the passage would try a rush, that they would endeavour to steam by the, batteries and drive the `defending gunners from their guns by concentrated fire.
The mounted division, and also a division from Helles, were quietly concentrated there, and on the 21st a determined attempt was made to capture some of the high ground which had baffled the essays of the invaders on the 9th and loth.
Silicon fluoride, SiF4, is formed when silicon is brought into contact with fluorine (Moissan); or by decomposing a mixture of acid potassium fluoride and silica, or of calcium fluoride and silica with concentrated sulphuric acid.
Hot (concentrated) sulphuric acid does not attack gold, platinum and platinum-metals generally; all other metals (including silver) are converted into sulphates, with evolution of sulphur dioxide.
It is readily nitrated to nitrobenzene, two, and even three nitro groups being introduced if some dehydrator such as concentrated sulphuric acid be present.
There may be the folk-right of West and East Saxons, of East Angles, of Kentish men, Mercians, Northumbrians, Danes, Welshmen, and these main folk-right divisions remain even when tribal kingdoms disappear and the people is concentrated in one or two realms. The chief centres for the formulation and application of folkright were in the 10th and iith centuries the shire-moots, while the witan of the realm generally placed themselves on the higher ground of State expediency, although occasionally using folkright ideas.
The attention of European diplomacy at this time was concentrated upon the king of Prussia, whose insatiable acquisitiveness disturbed all his neighbours.
The sap is purified and concentrated in a simple manner, the whole work being carried on by farmers, who themselves use much of the product for domestic and culinary purposes.
In Barbadoes there are still many estates making good Mascabado sugar; but as the juice is extracted from the canes by windmills, and then concentrated in open kettles heated by direct fire, the financial results are disastrous, since nearly half the yield obtainable from the canes is lost.
On his sole initiative, without consulting his ministers or the council of the empire, he sent instructions to Hafiz Pasha, commanding the Ottoman troops concentrated at Bir on the Euphrates, to advance into Syria.
At a boiling heat, zinc chloride dissolves in any proportion of water, and highly concentrated solutions, of course, boil at high temperatures; hence they afford a convenient medium for the maintenance of high temperatures.
Upon his head was concentrated the whole of the popular indignation against the foreign favourites; and he seems to have deserved this unenviable distinction.
Numerous sulphonic acids of anthracene are known, a monosulphonic acid being obtained with dilute sulphuric acid, whilst concentrated sulphuric acid produces mixtures of the anthracene disulphonic acids.
It is insoluble in all acids, except in hot concentrated sulphuric, when finely powdered.
Concentrated nitric acid attacks them violently, producing various oxidation products, but if the amino group be "protected" by being previously acetylated, then nitro derivatives are obtained.
When heated with concentrated sulphuric acid for some time, they are sulphonated.
He also showed that the total gravitation of the earth, assumed as spherical, on external bodies, would be the same as if the earth's mass were concentrated in the centre.
The foreign population is chiefly concentrated in Lima and Callao, though mining and other industries have drawn small contingents to other places.
Peru was the centre of Spanish power, and the viceroy had his military strength concentrated at Lima.
It crystallizes in small colourless needles and is easily soluble in water; the concentrated aqueous solution dissolves bromine and iodine readily.
It is a colourless, amorphous solid, which is almost insoluble in water, its solubility diminishing with increasing temperature; it is appreciably soluble in concentrated sulphuric acid.
When, after being virtually under arrest, he rejoined his army, it was concentrated about Savannah on the Tennessee, preparing for a campaign towards Corinth, Miss.
Four armies were placed under his command, and three of these concentrated at Chattanooga.
Whatever were the matter in hand, he so concentrated himself on it, and absorbed himself in it, that nothing else seemed to exist for him.
Most of the external ornamentation is usually concentrated on the western front, which often has a lofty arched porch on marble columns, resting on griffins or lions devouring their prey.
Propertius is a less accomplished artist and a less equably pleasing writer than either Tibullus or Ovid, but he shows more power of dealing gravely with a great or tragic situation than either of them, and his diction and rhythm give frequent proof of a concentrated force of conception and a corresponding movement of imaginative feeling which remind us of Lucretius.
It is a fundamental theorem in attractions that a thin spherical shell of matter which attracts according to the potential law of the inverse square acts on all external points as of a if it were concentrated at its centre.
The Confederates concentrated above 40,000 men at Corinth and advanced on Pittsburg Landing with a view to beating Grant before Buell's arrival, but their concentration had left them only a narrow margin of time, and the advance was further delayed by the wretched condition of the roads.
When a concentrated solution of auric chloride is treated with caustic potash, a brown precipitate of auric hydrate, Au(OH) 3, is obtained, which, on heating, loses water to form auryl hydrate, AuO(OH), and auric oxide, Au 2 0 3.
With concentrated ammonia auric oxide forms a black, highly explosive compound of the composition AuN2H3.3H20, named " fulminating gold "; this substance is generally considered to be Au(NH 2)NH.
Potassium auricyanide, 2KAu(CN) 4.3H 2 O, is obtained as large, colourless, efflorescent tablets by crystallizing concentrated solutions of auric chloride and potassium cyanide.
The most primitive is the rubbing together of the concentrated crushings with mercury in iron mortars.
It was at one time proposed to treat the concentrated black iron obtained in the Ural gold washings, which consists chiefly of magnetite, as an iron ore, by smelting it with charcoal for auriferous pigiron, the latter metal possessing the property of dissolving gold in considerable quantity.
This is smelted with rich gold ores, notably those containing tellurium, for white metal or regulus; and by a following process of partial reduction analogous to that of selecting in copper smelting, " bottoms " of impure copper are obtained in which practically all the gold is concentrated.
It is based upon the facts that concentrated hot sulphuric acid converts silver and copper into soluble sulphates without attacking the gold, the silver sulphate being subsequently reduced to the metallic state by copper plates with the formation of copper sulphate.
Bismuth sulphate, B12(S04)3, is obtained as a white powder by dissolving the metal or sulphide in concentrated sulphuric acid.
The royalists, effectually roused by the reverses they had sustained, concentrated all their means, and a number of sanguinary encounters ensued.
A shift of the wind having given him the weather-gage, he concentrated a vigorous attack on Lawson.
De Ruyter concentrated on the van and centre of the allies, and in spite of his great inferiority of numbers was able to be superior at the point of attack.
What is most remarkable in it is his concentrated effort to realize the exact political weight of the German nation, and to penetrate the causes of its strength and weakness.
Dazzled, as it were, with the brilliancy of his own discovery, concentrated in attention on the one necessity for organizing a powerful coherent nation, he forgot that men are more than political beings.
The element is insoluble in water, but dissolves in concentrated sulphuric acid forming a deep red solution.
After the fall of Vicksburg Johnston concentrated his forces at Jackson, which had been evacuated by the Federal troops, and prepared to make a stand behind the intrenchments.
Frank of Charlottenburg, who finds that a concentrated solution of cuprous chloride in an acid, the liquid being made into a paste with kieselgiihr, is the most effective.
Besides the troops in barracks, during the drill season there is often a considerable force in camp, both regular troops from other stations and militia and volunteer units, so that, including the regular garrison, sometimes as many as 40,000' troops have been concentrated at the station for training and manoeuvres.
The duke then ordered Cutts to observe the enemy in Blenheim, and concentrated all his attention on the centre.
After this the " French " slowly concentrated in Buddu in the south, the Protestants migrating thence.
Thomas Aquinas was the first theologian to describe the Church as a divinely organized absolute monarchy, whose head concentrated in his person the entire authority of the Church, and was the source of all the ecclesiastical law (conditor juris), issuing the decrees of general councils in his own name, and claiming the right to revoke or modify the decrees of former councils - indeed, to make exceptions or to set aside altogether anything which did not rest upon the dictates of divine or natural law.
In Utrecht, however, power was henceforth concentrated in the gilds, which became not only trade but political associations, which together constituted the sovereign community.
In this government, though the Schepenen retained a dignified precedence, all power was practically concentrated in the popularly elected Raad, even the estates of the see (Sticht) had "nothing to say in the city."
Dioxyand tetraoxy-anthraquinones are obtained when meta-oxyand dimeta-dioxy-benzoic acids are heated with concentrated sulphuric acid.
The foreign population includes many capitalists and industrial managers who are doing much to develop the country, the American colony being concentrated in a fine modern residential district on the south-western side of the city.
In order tofacilitate the regulation of the trade by the Casa de Contratacion, it was concentrated first in Seville, and when the Guadalquivir was found to be becoming too shallow for the growing tonnage of ships, at Cadiz.
The amount of methyl alcohol present in wood spirit is determined by converting it into methyl iodide by acting with phosphorus iodide; and the acetone by converting it into iodoform by boiling with an alkaline solution of iodine in potassium iodide; ethyl alcohol is detected by giving acetylene on heating with concentrated sulphuric acid, methyl alcohol, !under the same circumstances, giving methyl ether.
The population is largely concentrated in and about the village which bears the name of the township. In Attleborough are the Attleborough Home Sanitarium, and a public library (1885).
Kehrmann showed that aposafranine could be diazotized in the presence of cold concentrated sulphuric acid, and the diazonium salt on boiling with alcohol yielded phenylphenazonium salts.
Aposafranone, C,8H12N20, is formed by heating aposafranine with concentrated hydrochloric acid.
The double fluoride is decomposed with hot concentrated sulphuric acid; the mixed sulphate is dissolved in water; and the zirconia is precipitated with ammonia in the cold.
But, if the hydroxide is precipitated in the heat, it demands concentrated acids for its solution.
The anhydrous oxide is with difficulty soluble even in hydrofluoric acid; but a mixture of two parts of concentrated sulphuric acid and one of water dissolves it on continued heating as the sulphate, Zr(S04)2.
To gain the best chance of success he would have to concentrate his whole army almost within gunshot of the centre of the enemies' outposts without attracting their attention; otherwise he would find the allies concentrated and waiting for him.
Had he made in 1815 the wise distribution of his soldiers in the theatre of war which he made in his former immortal campaigns, he would have concentrated 155,000 to 160,000 of his available force opposite to Charleroi on June 14, and the issue of the campaign would hardly have been in doubt.
Gerard, too, was late in starting, for his corps had not been fully concentrated over-night.
They concentrated their scattered men and hastened to march to the appointed rendezvous.
At nightfall the Army of the North lay concentrated "in a square whose sides measured 12 m.
By nightfall the situation was all in favour of the allies; for Grouchy was now actually outside the four Prussian corps, who were by this time concentrated astride the Dyle at Wavre.
In 1821 an attempt to get a return of ages was made, but it was not repeated in 1831, when the attention of the enumerators was concentrated upon greater detail in the occupation record.
As the sphere of the census operations in Canada has been gradually spreading from the small beginnings on the east coast to the immense territories of the north-west, so, in the island continent, colonization, first concentrated in the south-east, has extended along the coasts and thence into the interior, except in the northern region.
By this means the attention of the office could be concentrated on a small number of subjects rather than distributed over the long list treated in the volumes of the tenth and eleventh censuses.
The centroid of a figure is a point fixed with regard to the figure, and such that its moment with regard to any plane (or, in the case of a plane area or line, with regard to any line in the plane) is the same as if the whole volume, area or length were concentrated at this point.
The weight of Turkish resistance lay in Eastern Thrace, concentrated there for the defence of the capital and the straits.
As light is concentrated into a focus by a.
In the eastern districts of Harrismith, Bethlehem, Ficksburg and Ladybrand the Basutos are largely concentrated.
The extension of railways also has concentrated the trade of the island upon the capital, and contributed to its rise in prosperity.
The Russians, though well aware that the force in their front was an army, neither retired nor concentrated.
This incident suggests two reflections - first that raids or attacks in rear of the " centre of operations " are valueless, however daring, and second that had Zasulich, in his determination to be worthy of his knighthood, concentrated for battle, the presence of the Madritov detachment on the field would have prevented the lamentable and costly misunderstandings of the retreat on Hamatan.
Every attempt to bring up supports to the captured positions failed, and the Russians concentrated on the spot from all quarters.
Togo's fire was concentrated first on the " Osliabia," the leading Russian battleship, and by 2.25 she was hors de combat.
Greatest Shear when concentrated Loads travel over the Bridge.
C. Lea, dealing with the determination of stress due to concentrated loads, by the method of influence lines will be found in Proc. Inst.
Cochrane and Church at once concentrated their energies on the task of relieving the Acropolis.
It is insoluble in water; slightly soluble in solutions of carbonic acid and common salt, and readily soluble in concentrated hydrochloric and nitric acid.
By the addition of sodium amalgam to a concentrated solution of ammonium chloride, the so-called ammonium amalgam is obtained as a spongy mass which floats on the surface of the liquid; it decomposes readily at ordinary temperatures into ammonia and hydrogen; it does not reduce silver and gold salts, a behaviour which distinguishes it from the amalgams of the alkali metals, and for this reason it is regarded by some chemists as being merely mercury inflated by gaseous ammonia and hydrogen.
The precipitate is filtered off and the solution concentrated.
The normal phosphate, (NH4)3P04,is obtained as a crystalline powder, on mixing concentrated solutions of ammonia and phosphoric acid, or on the addition of excess of ammonia to the acid phosphate (NH 4) 2 HPO 4.
Only one compound of hydrogen and fluorine is known, namely hydrofluoric acid, HF or H 2 F 2, which was first obtained by C. Scheele in 1771 by decomposing fluor-spar with concentrated sulphuric acid, a method still used for the commercial preparation of the aqueous solution of the acid, the mixture being distilled from leaden retorts and the acid stored in leaden or gutta-percha bottles.
Fluorides can be readily detected by their power of etching glass when warmed with sulphuric acid; or by warming them in a glass tube with concentrated sulphuric acid and holding a moistened glass rod in the mouth of the tube, the water apparently gelatinizes owing to the decomposition of the silicon fluoride formed.
The Church at first refrained from contesting the rights of the landowners over their own churches, and concentrated her attack upon investiture.
Rumours of the war of extermination conducted against their kinsmen, the wild Prussians, by the Knights, first woke the Lithuanians to a sense of their own danger, and induced them to abandon their loose communal system in favour of a monarchical form of government, which concentrated the whole power of the state in a single hand.
General McClellan had captured the passes of South Mountain farther east on the 14th, and his Army of the Potomac marched to meet Lee's forces which, hitherto divided, had, by the 16th, successfully concentrated between the Antietam and the Potomac. The Confederate Army of Northern Virginia occupied a position which, in relation to the surrounding country, may be compared to the string of a bow in the act of being drawn, Lee's left wing forming the upper half of the string, his right the lower, and the Potomac in his rear the bow itself.
Much of Holbach's fame is due to his intimate connexion with the brilliant coterie of bold thinkers and polished wits whose creed, the new philosophy, is concentrated in the famous Encyclopedie.
On the 7th of October the various divisions concentrated at Bressuire, took Chatillon after two bloody engagements, and defeated the Vendeans at Cholet, Beaupreau and La Trem blaye.
They combine with hypochlorous acid to form chlorhydrins; and are easily soluble in concentrated sulphuric acid, giving rise to sulphuric acid esters; consequently if the solution be boiled with water, the alcohol from which the olefine was in the first place derived is regenerated.
It may also be prepared by heating formic and oxalic acids (or their salts) with concentrated sulphuric acid (in the case of oxalic acid, an equal volume of carbon dioxide is produced); and by heating potassium ferrocyanide with a large excess of concentrated sulphuric acid, K 4 Fe(CN) 6 -i-6H2S04+6H20=2K2S04+FeS04+3(NH4)2S04+6C0.
It is also formed by the action of sulphuretted hydrogen on the isocyanic esters, 2CONC 2 H 5 +H 2 S=COS+CO(NHC 2 H 5) 2, by the action of concentrated sulphuric acid on the isothiocyanic esters, Rncs H 2 O = Cos Rnh 2, Or Of Dilute Sulphuric Acid On The Thiocyanates.
It Is Easily Soluble In Solutions Of The Caustic Alkalis, Provided They Are Not Too Concentrated, Forming Solutions Of Alkaline Carbonates And Sulphides, Cos 4Kho = K2C03 K 2 S 2H20.
Hot concentrated nitric acid oxidizes it to picric acid and oxalic acid, whilst on treatment with hydrochloric acid and potassium chlorate it yields chloranil (tetrachloroquinone).
Until the end of 1863 the events in these three regions remain distinct episodes; after that the whole theatre of war is comprised in the "anaconda policy," which concentrated irresistible masses of troops from all sides on the heroic remnants of the Confederacy.
The Army of the Potomac crossed that river only one day later than Lee, and concentrated at Frederick.
McClellan lingered north of Richmond, despite President Lincoln's constant demand that he should "strike a blow" with the force he had organized and taken to the Yorktown peninsula in April, until General Lee had concentrated 73,000 infantry in his front; then the Federal commander, fearing to await the issue of a decisive battle, ended his campaign of invasion in the endeavour to "save his army"; and he so far succeeded that on July 3 he had established himself on the north bank of the James in a position to which reinforcements and supplies could be brought from the north by water without fear of molestation by the enemy.
Longstreet and Hill were thus opposed to five Federal divisions, while General McClellan was pushing his wagons forward to Malvern Hill, on which strong position the Army of the Potomac was concentrated at nightfall.
General Lee had thus on the seventh day concentrated his army of ten divisions in the enemy's front; but Jackson's dispositions were unfortunate and General Lee's plan of attack was thus upset; and while seeking a route to turn the enemy's right the Confederate commander was apprised that a battle had been improvised by the divisions in advance.
South of Tampico, iiowever, they are concentrated in a single lofty range.
The coinage of Mexico, now concentrated at the mint in the capital (all others having been closed) is based (since November 28, 1867) on the decimal system - the peso being divided into 100 centavos - and consists of gold, silver, nickel and bronze coins, whose weight and fineness are determined by the monetary law of 1904.
The revolutions of 1830 strengthened Frederick William in his reactionary tendencies; the question of the constitution was indefinitely shelved; and in 1831 Prussian troops concentrated on the frontier helped the task of the Russians in reducing the military rising in Poland.
Howe then concentrated his force of nine small line-of-battle ships at Sandy Hook on the 29th of June, and on the 11 th of July he learnt that d'Estaing was approaching.
The kelp obtained by any of these methods is then lixiviated with water, which extracts the soluble salts, and the liquid is concentrated, when the less soluble salts, which are chiefly alkaline chlorides, sulphates and carbonates, crystallize out and are removed.
Iodine may also be prepared by the decomposition of an iodide with chlorine, or by heating a mixture of an iodide and manganese dioxide with concentrated sulphuric acid.
The acid cannot be prepared by the action of concentrated sulphuric acid on an iodide on account of secondary reactions taking place, which result in the formation of free iodine and sulphur dioxide.
It is a powerful reducing agent, and is frequently employed for this purpose in organic chemistry; thus hydroxy acids are readily reduced on heating with the concentrated acid, and nitro compounds are reduced to amino compounds, &c. It is preferable to use the acid in the presence of amorphous phosphorus, for the iodine liberated during the reduction is then utilized in forming more hydriodic acid, and consequently the original amount of acid goes much further.
Nitrous acid and chlorine readily decompose them with liberation of iodine; the same effect being produced when they are heated with concentrated sulphuric acid and manganese dioxide.
Hydroferrocyanic acid, H 4 Fe(NC)s, is best obtained by decomposing the lead salt with sulphuretted hydrogen under water, or by passing hydrochloric acid gas into a concentrated ether solution of the potassium salt.
It dissolves unchanged in concentrated sulphuric acid, and oxidizes readily in moist air, forming Prussian blue.
Hydroferricyanic acid, H 3 Fe(NC)s, obtained by adding concentrated hydrochloric acid to a cold saturated solution of potassium ferricyanide, crystallizes in brown needles, and is easily decomposed.
The solution is evaporated, separated from potassium nitrate, the free acid neutralized with soda, and the solution concentrated.
The free acid, when heated with concentrated sulphuric acid, is decomposed into water and pure carbon monoxide; when heated with nitric acid, it is oxidized first to oxalic acid and finally to carbon dioxide.
Concentrated sulphuric acid converts them into sulphates, with simultaneous liberation of carbon monoxide.
The same years, however, made apparent a rapid fall, general and marked, yet possibly only temporary, in the rate at which such urban centres, as well as larger ones, had been gaining upon the rural districts; this reaction being most pronounced in the South and least so in the North Atlantic states, whose manufacturing industries are concentrated in dense centres of population.
The residue is treated with a warm concentrated solution of soda, and the oil which separates is removed by shaking with benzene.
University work in the maritime provinces, instead of being concentrated, as it might well be, in one powerful institution, is distributed among five small, but within their range efficient universities.
It contains, in addition to tannin, a peculiar principle called larixin, which may be obtained in a pure state by distillation from a concentrated infusion of the bark; it is a colourless substance in long crystals, with a bitter and astringent taste, and a faint acid reaction; hence some term it larixinic acid.
Wohler reduced the sesquioxide by zinc, and obtained a shining green powder of specific gravity 6.81, which tarnished in air and dissolved in hydrochloric acid and warm dilute sulphuric acid, but was unacted upon by concentrated nitric acid.
Chromic acid and its salts, the chromates and bichromates, can be detected by the violet coloration which they give on addition of hydrogen peroxide to their dilute acid solution, or by the fact that on distillation with concentrated sulphuric acid and an alkaline chloride, the red vapours of chromium oxychloride are produced.
Chromium trioxide, Cr03, is obtained by adding concentrated sulphuric acid to a cold saturated solution of potassium bichromate, when it separates in long red needles; the mother liquor is drained off and the crystals are washed with concentrated nitric acid, the excess of which is removed by means of a current of dry air.
Heated with concentrated hydrochloric acid it liberates chlorine, and with sulphuric acid it liberates oxygen.
Oxyhalogen derivatives of chromium are known, the oxychloride, CrO 2 C1 21 resulting on heating potassium bichromate and common salt with concentrated sulphuric acid.
Potassium chlorochromate, CrO 2 Cl OK, is produced when potassium bichromate is heated with concentrated hydrochloric acid and a little water, or from chromium oxychloride and saturated potassium chloride solution, when - it separates as a red crystalline salt.
Chromic sulphate, Cr2(S04)3, is prepared by mixing the hydroxide with concentrated sulphuric acid and allowing the mixture to stand, a green solution is first formed which gradually changes to blue, and deposits violet-blue crystals, which are purified by dissolving in water and then precipitating with alcohol.
By the action of concentrated sulphuric acid it is transformed into chromium ammonium sulphate.
The foot has been developed into long processes which have extended in a circle round the mouth; all the ganglia, including the visceral, have been concentrated around the oesophagus.
By the 13th of June he had concentrated his main army on the northern frontier, and on the 14th crossed the Sambre.
McClellan's army was concentrated.
It has the characteristic appearance of pure silk - a brilliant soft white body with a pearly lustre - insoluble in water, alcohol and ether, but it dissolves freely in concentrated alkaline solutions, mineral acids, strong acetic acid and in ammoniacal solution of oxide of copper.
The optical effect as regards resolving power is the same as with a grating of N lines in the nth order, but, nearly all the light not absorbed by the glass may be concentrated in one or two orders.'
Heated with anhydrous sodium acetate and acetic anhydride it gives cinnamic acid; with ethyl bromide and sodium it forms triphenyl-carbinol (C 6 H 5) 3 C OH; with dimethylaniline and anhydrous zinc chloride it forms leuco-malachite green C6H5CH[C6H4N(CH3)2]2; and with dimethylaniline and concentrated hydrochloric acid it gives dimethylaminobenzhydrol, C 6 H 5 CH(OH)C 6 H 4 N(CH 3) 2.
It may be prepared by dissolving the metal, its oxide, hydroxide, or carbonate in dilute hydrochloric acid, or by mixing concentrated solutions of magnesium sulphate and common salt, and cooling the mixture rapidly, when the less soluble sodium sulphate separates first.
These pans are worked on a continuous system, the liquor in the first being concentrated and run off into a second, and so on, until it is sufficiently concentrated to crystallize.
In small quantities, it may be prepared by the addition of concentrated sulphuric acid to a cold saturated solution of borax.
Not only is it clear, both from literary and archaeological evidence, that they were better armed (see below), but also their power was much more concentrated.
During the quarrels between the papacy and the Byzantine Empire her domains in lower Italy and Sicily also disappeared as time went on, and the territorial possessions of the Roman Church were concentrated in the neighbourhood of Rome.
The cloth and woollen industries are concentrated at Bielitz, Jagerndorf and Engelsberg; linen is manufactured at Freiwaldau Freudenthal and Bennisch; cotton goods at Friedek.
The iron industry is concentrated at Trzinietz, near Teschen, and various industrial and agricultural machines are manufactured at Troppau, Jagerndorf, Ustron and Bielitz.
Before considering the more complicated case of a concentrated solution, we will deal with one which is very dilute, when the theoretical relations are much simplified.
In a very dilute solution no appreciable heat is evolved or absorbed when solvent is added, but such heat effects are generally found with more concentrated solutions.
In the limit of dilution when n is very small compared with N this gives Raoult's experimental law that the relative lowering is n/N, which we deduced from the osmotic law, and conversely from which the osmotic law follows, while for more concentrated solutions agreement is obtained by assigning arbitrary values to a, which, as we have seen, is 5 in the case of cane-sugar.
At this temperature the nitrogen combines with the magnesium, and thus the argon is concentrated.
As the power of the Spanish crown was gradually concentrated and consolidated, royal pragmaticas began to take the place of constitutional laws; 1 Cap. xx.
Oil of vitriol is concentrated sulphuric acid.
For experimental purposes it is usually obtained by distilling potassium or sodium nitrate with concentrated sulphuric acid.
On the large scale it is obtained by distilling Chile saltpetre with concentrated sulphuric acid in horizontal cast iron stills, the vapours being condensed in a series of stoneware Woulfe's bottles.
Fuming nitric acid consists of a solution of nitrogen peroxide in concentrated nitric acid and is prepared by distilling dry sodium nitrate with concentrated sulphuric acid.
They may be recognized by the fact that on the addition of a solution of ferrous sulphate, followed by that of concentrated sulphuric acid (the mixture being kept quite cold), the ferrous sulphate solution becomes of a deep brown colour, owing to the reducing action of the ferrous sulphate on the nitric acid which is liberated by the action of the sulphuric acid on the nitrate.
This prosperity finally concentrated itself upon the Y (that is, upon Amsterdam) and the series of industrial villages situated on its offshoot the Zaam, of which Zaandam and Wormerveer are the most important.
Most of the recent research on Pliny has been concentrated on the investigation of his authorities, especially those which he followed in his chapters on the history of art - the only ancient account of that subject which has survived.
The weevers are poisonous and the venom is concentrated principally in the six spines of the first dorsal fin.
Retribution in human history is recognized, but attention is specially concentrated on the final judgment, which is usually conceived as taking place in two stages.
Heavy machine-gun fire was concentrated on her; two officers were dangerously wounded and two of the launch's crew of four killed, but she got clear.
The filtrate, now containing roughly two molecules of alumina to one of soda, is concentrated to the original gravity of 1.45, and employed instead of fresh caustic for the attack of more bauxite; the precipitate is then collected, washed till free from soda, dried and ignited at about looo C. to convert it into a crystalline oxide which is less hygroscopic than the former amorphous variety.
Aluminium sulphate, known commercially as "concentrated alum" or "sulphate of alumina," is manufactured from kaolin or china clay, which, after roasting (in order to oxidize any iron present), is heated with sulphuric acid, the clear solution run off, and evaporated.
After the end of the 3rd century missionary enterprise was mainly concentrated on the outlying borders of the empire.
The isolation of the Teutonic churches from the vast system with which they had been bound up, the conflicts and troubles among themselves, the necessity of fixing their own principles and defining their own rights, concentrated their attention upon themselves and their own home work, to the neglect of work abroad.8 Still the development of the maritime power of England, which the Portuguese and Spanish monarchies noted with fear and jealousy, was distinguished by a singular anxiety for the spread of the Christian faith.
Though the missionaries were chiefly concentrated in the treaty ports they gradually pushed inland,.
The injury inflicted is less and not so concentrated; the wounds are smaller, and have time to heal before winter sets in.
It is well, however, that everything connected with the forcing of fruits or flowers should be concentrated in one place.
Nine-tenths of the natives of Sumatra live by agriculture, the rest by cattle-rearing, fishing, navigation, and, last but not least, from the products of the forests; they are therefore little concentrated in towns.
Pfeffer showed that certain substances in definite concentrations cause the tips of hyphae to turn towards them; other substances, though not innutritious, repel them, as also do nutritious bodies if too highly concentrated.
In some cases the iron-bearing mineral, such as magnetite or haematite, can be separated from the gangue after crushing, either mechanically or magnetically, so that the part thus enriched or " concentrated " alone need be smelted.
Thus, if the use of ores very much poorer than those we now treat, and the need of concentrating them mechanically, were to double the cost of a pound of iron in the concentrated ore ready for smelting, that would increase the cost of rails by only one quarter.
By the addition of the diazonium salts to a hot concentrated solution of a caustic alkali, C. Schraube and C. Schmidt(Ber., 18 94, 2 7, p. 520)obtained an isomer of potassium benzene diazotate.
Concentrated acids convert them into the isomeric nitro-amines, the - NO 2 group going into the nucleus in the orthoor paraposition to the amine nitrogen; this appears to indicate that the compounds are nitramines.
Concentrated hydrochloric acid converts it into chlorbenzene, aniline and nitrogen.
Concentrated hydrochloric acid decomposes it with formation of C6H 6 N OH HO'N'H chloranilines and elimination of nitrogen, whilst on boiling with sulphuric acid it is converted into aminophenols.
It explodes in contact with concentrated sulphuric acid.
The league of Cambray had driven Venice back to her lagoons, and all the forces of the republic were concentrated on a struggle to the death with the allied powers of Europe.
Omission has been made of Aldo's reprints, in order that the attention of the reader might be concentrated on his labours in editing Greek classics from MSS.
To purify the oxide, it is dissolved in dilute hydrochloric acid until the acid is neatly neutralized, the solution is cooled, filtered, and baryta water is added until a faint permanent white precipitate of hydrated barium peroxide appears; the solution is now filtered, and a concentrated solution of baryta water is added to the filtrate, when a crystalline precipitate of hydrated barium peroxide, Ba0 2 8 H 2 0, is thrown down.
The above methods give a dilute aqueous solution of hydrogen peroxide, which may be concentrated somewhat by evaporation over sulphuric acid in vacuo.
The solution is then concentrated in an open basis on the waterbath until it contains 48% H202.
It may be recognized by the violet coloration it gives when added to a very dilute solution of potassium bichromate in the presence of hydrochloric acid; by the orange-red colour it gives with a solution of titanium dioxide in concentrated sulphuric acid; and by the precipitate of Prussian blue formed when it is added to a solution containing ferric chloride and potassium ferricyanide.
Nor can the superior polish of the more mature productions counterbalance the concentrated vigour of the more youthful work.
It is served by the New York Central & Hudson River and the New York, New Haven & Hartford railways, and by electric lines to New York City, Yonkers, New Rochelle, &c. The city has various manufactures, but in the main is a residential suburb of New York; the finest residences are in the eastern, central and north-eastern sections, the last being known as Chester Hill; the foreign-born element is largely concentrated in the western part.
The industry is mainly concentrated round two chief centres, Aix-la-Chapelle and Dusseldorf (with the valley of the Wupper), while there are naturally few manufactures in the hilly districts of the south or the marshy flats of the north.
The enormous constructive energy of the proud Pharaoh, instead of being concentrated on the capital, was expended with almost equal lavishness on other parts of the country.
With concentrated sulphuric acid, fuming nitric acid,.
This is now treated for some days with a hot concentrated solution of ammonium carbonate, which precipitates the iron and aluminium but keeps the beryllium in solution.
Several basic carbonates are known, being formed by the addition of beryllium salts to solutions of the alkaline carbonates; the normal carbonate is prepared by passing a current of carbon dioxide through water containing the basic carbonate in suspension, the solution being filtered and concentrated over sulphuric acid in an atmosphere of carbon dioxide.
But all his affection had been concentrated on her.
He concentrated all his energies on the government and defence of northern and eastern Germany, leaving the southern and western districts to profit by his example, while his policy of refraining from interference in the affairs of the other duchies tended to diminish the ill-feeling which existed between the various German tribes and to bring peace to the country as a whole.
But the attention of the French kings was concentrated on their immediate interests, and in course of time they brought their unruly vassals to order.
On the pretext that fair deliberation was impossible in the capital, the assembly was now ordered to meet in Brandenburg, while troops were concentrated near Berlin and a state of siege was proclaimed.
At the menace of her armaments, concentrated on the Rhine, Napoleon had stopped dead in the full career of victory; Austria, in the eyes of German men, had been placed under an obligation to her rival; and Italy realized the emergence of a new military power, whose interests in antagonism to Austria were identical with her own.