Ozone sentence example
Ozone at once attacks rubber, rapidly destroying it.
In the divalent oxygen we meet with the modification called ozone, which, although unstable, changes but slowly into oxygen.
An early step accomplished by Ostwald in this direction is to define ozone in its relation to oxygen, considering the former as differing from the latter by an excess of energy, measurable as heat of transformation, instead of defining the difference as diatomic molecules in oxygen, and triatomic in ozone.
Ozone occurs, in an amount supposed to be associated with the development of atmospheric electricity (lightning, &c.); this amount varies with the seasons, being a maximum in spring, and decreasing through summer and autumn to a minimum in winter.
Chromic acid oxidizes it to acetic acid and ozone oxidizes it to ethyl peroxide.Advertisement
If ozone is passed into a solution of rubber in chloroform the caoutchouc combines with a molecule of ozone forming a compound of the empirical composition C 5 H 8 O 8.
The Curies showed that oxygen was convertible into ozone, and Sudborough that yellow phosphorus gave the red modification when submitted to their influence.
It is found, more especially in the case of organic compounds, that if a substance which oxidizes readily at ordinary temperature be mixed with another which is not capable of such oxidation, then both are oxidized simultaneously, the amount of oxygen used being shared equally between them; or in some cases when the substance is spontaneously oxidized an equivalent amount of oxygen is converted into ozone or hydrogen peroxide.
The Siemens and Halske ozonizer, in form somewhat resembling the old laboratory instrument, is largely used in Germany; working with an alternating current transformed up to 650o volts, it has been found to give 280 grains or more of ozone per e.
Now, in this case, the first definition expresses much better the whole chemical behaviour of ozone, which is that of "energetic" oxygen, while the second only includes the fact of higher vapour-density; but in applying the first definition to organic compounds and calling isobutylene "butylene with somewhat more energy" hardly anything is indicated, and all the advantages of the atomic conception - the possibility of exactly predicting how many isomers a given formula includes and how you may get them - are lost.Advertisement
The ozone so prepared has numerous uses, as, for example, in bleaching oils, waxes, fabrics, &c., sterilizing drinking-water, maturing wines, cleansing foul beer-casks, oxidizing oil, and in the manufacture of vanillin.
Hydrogen dioxide occurs in a manner closely resembling ozone.
Numerous other methods of purification, some based on the oxidizing action of ozone, have been suggested.
There, the chlorine released by CFCs destroys the ozone at the rate of 100,000 molecules of ozone per chlorine released by CFCs destroys the ozone at the rate of 100,000 molecules of ozone per chlorine atom.
In the southern spring, ozone is destroyed above Antarctica, mainly by manufactured compounds called chlorofluorocarbons (CFCs ).Advertisement
It is now generally accepted that the loss of stratospheric ozone is caused by chemical reactions initiated by chlorofluorocarbons.
Ozone is formed from the reaction of volatile organic compounds with sunshine.
However, 50% reductions in North America or Asia will produce a larger impact in mean ozone concentrations.
Ozone may also be negatively correlated with nitrogen dioxide in urban areas.
All showed a similar response, indicating that tolerance to ozone may not be an option in breeding improved cultivars.Advertisement
This caused the region of total ozone depletion to grow upwards, with considerable partial depletion of ozone at heights up to 23 km.
The focus was to understand the role these species might play in stratospheric ozone depletion.
In the latter case, chemical ozone depletion in the Arctic would be expected to diminish.
Among the latter is chlorine monoxide, which initiates ozone destruction in the presence of sunlight.
Any excess ozone not absorbed into the water is destroyed by a machine called a destructor.Advertisement
This, they claim, is evident in everything from discourses of genetic essentialism to the realities of ozone layer thinning.
Also, many problems with Chlorine containing solvents have been found (specifically the ozone layer) which makes this process somewhat less favorable.
Poisoning gases like ozone are also destroyed along with all allergens such as pollen, dust mite feces and pet dander.
All the ozone generators feature a rheostat control for adjustable ozone production.
Please Click Here to learn more about the ozone imp range of kites.
Ozone is a lung irritant emitted from many air cleaners in the market that can trigger allergy reactions, even in small amounts.
The Ozone Instinct is the new inflatable kite from the Ozone stable of kites.
In this study, observations of ozone laminae made in Feb. 1995 during the SESAME campaign were modeling using the contour advection technique.
Participants were then exposed to 0.4 parts per million of ozone for two hours and underwent a second bronchoalveolar lavage.
The ozone layer has been torn apart & the polar ice caps are melting.
If ozone concentrations exceed 180 micrograms per cubic meter, they must inform the public and provide health advice.
And although biodiesel is cleaner than diesel, ethanol is not; it generates mutagens and carcinogens and increases ozone levels in the atmosphere.
Ozone is a gas that prevents much noxious UV radiation from reaching the Earth's surface.
Rather like the ozone octane in this respect, it needs to be " under-steered " and demands a sensitive pilot.
The aim will be to assess the radical chemistry and rates of formation of ozone and other oxidants using the modified MCM.
If aging pop star, Cher was cremated, would her plastic implants deplete the ozone?
Filters that are in working order catch paper dust and destroy ozone.
However, pollutants which lead to the formation of ozone emitted from other countries influence ozone emitted from other countries influence ozone levels in the UK.
Using natural ozone to neutralize odors The Initial Air Pure system generates ozone which occurs naturally in the environment and contains powerful sterilizing properties.
Estimates for damage costs from volatile organic carbons do not always obviously include estimates for creation of tropospheric ozone.
An accurate way of measuring atmospheric ozone is by using an Ozone Monitor.
During 1998, the park's worst recorded year for ground-level ozone, studies found damage to 30 plant species in the area.
The main cause of these is vehicle exhaust fumes reacting with sunlight to form ground level ozone.
The figure below shows a comparison of ground-based observations of column ozone above Tenerife with calculations from our 3-D model.
A few years and everyone will forget car pollution, nuclear waste and the depleting ozone layer, they claimed.
Maybe if Team Rocket got enough together they could destroy the ozone layer and finally do something evil.
To protect the ozone layer by taking precautionary measures to control global emissions of substances which deplete it.
Unfortunately, burning these fuels creates substantial environmental pollution that damages the ozone layer.
Jonathan Shanklin, a co-discoverer of the hole in the antarctic ozone layer, from the British Antarctic Survey will talk about his experiences.
Our research group has made an intensive study of ozone photochemistry for more than thirty years.
According to the US EPA, 9% of the airborne pollutants creating ground level ozone come from the VOCs in paint.
This will require action on ozone precursor emissions at a global scale.
Destruction of the ozone layer results in an increase in the amount of harmful ultraviolet radiation reaching the Earth's surface.
The Ozone layer which protects us from harmful gamma radiation has recently disappeared over the tip of South Africa.
The Protocol aims to reduce and eventually eliminate the emissions of man-made ozone depleting substances.
The initial nose is of peaches, soft toffee, ozone and dusty barns.
Stratospheric ozone acts as a shield by absorbing potentially harmful ultraviolet (UV) radiation which would otherwise reach the earth's surface.
Ozone is formed naturally in the upper stratosphere by short wavelength ultraviolet radiation.
Ozone (O 3) is needed in the upper atmosphere to protect the Earth from harmful ultra violet rays.
Topolansky (54) have found a marked connexion at Vienna between dissipation and ozone.
Days were grouped according to the intensity of colouring of ozone papers, o representing no visible effect, and 14 the darkest colour reached.
Phys., 1888 (6) 14, p. 435); by heating phenol carboxylic acids with baryta; and, in small quantities by the oxidation of benzene with hydrogen peroxide or nascent ozone (A.
It is almost insoluble in water, is miscible with absolute alcohol and ether, and dissolves sulphur, phosphorus, resins and caoutchouc. On exposure to the air it dries to a solid resin, and absorbing oxygen gives off ozone - a reaction utilized in the disinfectant called "Sanitas."
Destruction of the ozone layer results in an increase in the amount of harmful ultraviolet radiation reaching the Earth 's surface.
Summertime smog, or ozone, is also caused by traffic.
Measuring ozone To measure the ozone we use the Dobson Ozone Spectrophotometer (behind us in the photograph above).
Ozone layer is situated in the stratosphere of the atmosphere.
Such a situation occurs in the Antarctic stratosphere during the springtime formation of the ozone hole.
The same applies more or less to the loss of ozone in the Arctic stratosphere during winter.
Or the taste of the coming storm, In air thick with ozone, During the sultry heat of summer.
Low tropopause pressures are evident over the same region as for the reported low ozone anomalies.
Stratospheric ozone acts as a shield by absorbing potentially harmful ultraviolet (UV) radiation which would otherwise reach the earth 's surface.
When bombarded with protons from the Sun, water vapor molecules break up into forms where they react with ozone.
It combines with nitrogen oxides and forms tropospheric ozone.
Ozone, or tropospheric ozone, is a pollutant formed by the reaction of sunlight on hydrocarbons and nitrogen oxides.
Carbon dioxide contributes to ground-level ozone, like the analogy of the greenhouse.
Likewise, the ground-level ozone warms the planet and the oceans.
The pollution has both visible and unseen effects on humans, animals, trees, and other living things as well as buildings, natural areas, and the ozone layer.
The Earth is protected from the sun's harmful ultraviolet rays by a layer of ozone in the stratosphere section of the atmosphere.
Research has shown that the release of chlorofluorocarbons (CFCs) from aerosol cans, refrigeration systems and air conditioners have a direct impact on the stability of the ozone layer.
Global environmental problems that affect the air include climate change, air pollution and ozone depletion.
The other is an annual seasonal depletion that's located over the polar caps and is referred to as the ozone hole.
Both types of ozone depletion occur when chloroflourocarbons (freons) break down in the atmosphere, but this is a very slow process that takes between 20 and 120 years.
The chlorine reacts with oxygen, which leads to the chemical process of destroying ozone molecules."
The herbs and spices are also radiation and ozone treatment-free.
Using a simple procedure that yields complex chemical results, ozone gas is bubbled through extra virgin olive oil at room temperature over a period of weeks.
The oxygen free radical in the ozone reacts with the unsaturated fatty acids of the olive oil to form a number of biologically active oxygenated compounds.
By stabilizing ozone within the fatty acids of a naturally benign substance like olive oil, the harmful effects of the chemical are neutralized while the medical benefits remain active.
The ozone used to process the olive oil should be medical grade ozone produced by a cold plasma ozone generator.
Sandalwood, oakmoss, ylang ylang, musk, wet ozone and pheromones add unexpected flavors of their own to this bright, youthful scent.
At its heart is the sweetly frothy mint julep, which mingles intriguingly with a cool ozone note.
Due to the filtering properties of the earth's atmospheric ozone layer, practically all of the ultraviolet light that reaches the earth's surface is the long-wave UVA, while the UVC is necessary to the generation of ozone.
While the Windows Mobile 6.5 update is freely available for the Samsung Jack from AT&T and the HTC Ozone from Verizon, there is no phone to date from Sprint that is eligible for the update.
These may include tobacco smoke; household cleaners (ammonia and chlorine bleach) and furniture polish; ozone and other air pollutants; cocaine; and glue, paint thinners, solvents, and similar household products that produce toxic vapors.
Concerns about the depletion of the ozone layer focus on the serious health effects that increased exposure to UVC light would have.
A layer of ozone about 15 mi (24 km) above Earth's surface helps protect living things from the damaging effects of the sun's ultraviolet rays.
Ozone is used therapeutically as a disinfectant and oxidative agent.
As the ozone layer depletes, the effects of ultra violet rays are increased, and your child's delicate skin is at risk not only for a painful sunburn, but for skin cancer as well.
Ozone is an unstable and toxic form of oxygen, and structurally speaking, it's three oxygen atoms bound together.
This unit allows the ozone to work only with water in the pipe, and it keeps the ozone from leaking out into the rest of the pool.
So, while ozone doesn't actually contain chlorine, it's still classed as a low chlorine alternative.
If you're going to be in the sun all day, the Ozone Tech is ideal - its hood comes with a sun visor, thus cooling and protecting the head, neck and eyes.
One of these devices is known as an ozone air purifier.
Manufacturers claim that replacing air particles with ozone particles (an actual pollutant) increases the quality of the air breathed.
Ozone can cause lung and throat problems since it is an irritant.
Those suffering from allergies and asthma often react badly to ozone particles in the air, and asthma and allergy attacks can become even worse.
In addition, most air ionizers produce ozone as a byproduct.
Ozone is a form of oxygen, but even in small amounts, it can be harmful.
According to FDA mandates, air purifiers must produce less than 40 parts per billion of ozone when the levels are measured two inches away from the unit.
You can find out whether your air purifier emits ozone by performing a home test.
The International Association of Air Cleaner Manufacturers offers a free ozone test kit.
In recent years, Consumer Reports and other consumer advocacy groups have raised concerns about the ozone produced by ionizing air purifiers.
The EPA warns against even small amounts of ozone, especially for people with lung conditions such as asthma.
Oreck air purifiers emit less ozone than the FDA-mandated limit of 50 parts per billion, but some consumer advocacy groups feel this may still be too much.
This kit contains one bottle of Assail-A-Cell, one 8-pack of scent cartridges and a 3-in-1 absorber that converts ozone to oxygen and performs other air purifying functions.
In addition to reducing odors, this product also reduces volatile organic compounds (chemical fumes, for example) and converts harmful ozone to healthy oxygen.
The unit's oxygenator kicks in to convert ozone to oxygen, and the air revitalize freshens stale air by releasing negative ions.
One of the most serious problems associated with ionic air purifiers is the production of ozone.
Ozone consists of three oxygen atoms, but can cause problems for people who have asthma and allergies.
In some states, laws require manufacturers to test their air purifiers to ensure that they do not produce ozone.
Research ionic air purifiers carefully if you have concerns about ozone production.
Both of these natural occurrences create large amounts of negative ions which essentially clean the air, leaving behind a fresh smell, or what one might call an "ozone smell."
For many people with asthma, the air ionizer by Alpine produces far too much ozone, which can lead to eye and nasal irritations.
Newer Alpine Air Ionizers bear the name "Living Air" and many models have adjustable knobs for controlling the amount of ozone that gets dispersed into the room and a UVC light for the elimination of certain bacteria.
It also features an Oxygenator which the company says coverts ozone into breathable oxygen.
Some writers, even of good reputation, have held that the blue is the true body colour of the air, or of some ingredient in it such as ozone.
Its vapour possesses a characteristic smell, somewhat resembling that of ozone.
Nitric acid and lower nitrogen oxides are present, being formed by electrical discharges, and by the oxidation of atmospheric ammonia by ozone.
We have therefore five distinct spectra of oxygen apart from the absorption spectra of ozone.
Concentrated sulphuric acid dissolves this oxide, forming a yellowish solution and ozone.
A dark violet fluor-spar from Wolsendorf in Bavaria, evolves an odour of ozone when struck, and has been called antozonite.
Silver is not oxidized by oxygen, but resembles mercury in being oxidized by ozone.
He also noticed a strong garlic-like odour, which we now know to be due to ozone.
It is probable, however, that pure phosphorous oxide vapour is odourless, and the odour of phosphorus as ordinarily perceived is that of a mixture of the oxide with ozone.
The goal is to protect the ozone layer by taking precautionary measures to control global emissions of substances.
Satellite imagery gives a global perspective on the ozone hole.
The ozone breaks down the organics, which are then adsorbed on the surface of the carbon.
In addition, sulfate aerosols have been linked to ozone layer depletion.
Ozone is a natural biocide, which effectively kills bacteria, viruses and fungi within seconds.
All the ozone generators feature a rheostat control for adjustable ozone generators feature a rheostat control for adjustable ozone production.
About local noon at a number of European ozone sonde sites, laminae in the ozone profiles had been recorded.
Measuring ozone To measure the ozone we use the Dobson Ozone spectrophotometer (behind us in the photograph above ).
Both rising CO2 levels and stratospheric ozone depletion tend to cool the stratosphere.
Such a situation occurs in the antarctic stratosphere during the springtime formation of the ozone hole.
Conversely, the ozone loss rates in the upper stratosphere, above 50 km, were further increased.
The professional value kit contains Odor Absorber Plus, which reduces volatile organic compounds and converts ozone to oxygen.
It is certain that the formation of hydrogen peroxide and ozone accompany the glowing, and in 1848 Schonbein tried to demonstrate that it.
The oxygen uniting with the substance undergoing oxidation is generally known as "bound oxygen," whilst that which is transformed into ozone or hydrogen peroxide is usually called "active oxygen."
His name is chiefly known in connexion with ozone, which he began to investigate in 1839, and with guncotton, which he prepared and applied as a propellant in fire-arms early in 1846.
The study of the action of ozone on caoutchouc has thrown new light on the complex question of the chemical structure of this substance, and discloses relationships with the sugars and other carbohydrates from certain of which levulinic acid is obtained by oxidation.
By 1891 he had designed and erected at the Royal Institution an apparatus which yielded liquid oxygen by the pint, and towards the end of that year he showed that both liquid oxygen and liquid ozone are strongly attracted by a magnet.
Ozone is also emitted by a violet fluorspar from Quincie, dep. Rhone, France.
It phosphoresces in ozone, but not in air, and is nonpoisonous; from its solution in alcoholic potash acids precipitate the hydride P 12 H 6, and when heated it is transformed into the red modification.
The methods of bleaching by oxygen include all those which aim at the bleaching by exposure to the air and to sunlight (as in the case of artists' linseed-oil), or where oxygen or ozone is introduced in the form of gas or is evolved by chemicals, as manganese dioxide, potassium bichromate or potassium permanganate and sulphuric acid..
Peters has found that with these methods the best results are obtained when ozone is employed in addition to electrolytic oxygen.
Chemical methods of sterilization have also been suggested, depending on the use of iodine, chlorine, bromine, ozone, potassium permanganate, copper sulphate or chloride and ()their substances.
Ammonium nitrite, NH 4 NO 2, is formed by oxidizing ammonia with ozone or hydrogen peroxide; by precipitating barium or lead nitrites with ammonium sulphate, or silver nitrite with ammonium chloride.
His work included investigations of osmic acid, of the ferrates, stannates, plumbates, &c., and of ozone, attempts to obtain free fluorine by the electrolysis of fused fluorides, and the discovery of anhydrous hydrofluoric acid and of a series of acides sulphazotes, the precise nature of which long remained a matter of discussion.
Manganese dioxide and sulphuric acid oxidize it to benzoic and o-phthalic acid; potassium chlorate and sulphuric acid breaks the ring; and ozone oxidizes it to the highly explosive white solid named ozo-benzene, C 6 H 6 O 6.
Schonbein (loc. cit.) assumed that the ordinary oxygen molecule is decomposed into two parts which carry electrical charges of opposite kinds, the one with the positive charge being called "antozone" and the other carrying the negative charge being called "ozone," one variety being preferentially used up by the oxidizing compound or element and the other for the secondary reaction.
With ozone they form ozonides (C. Harries, Ber., 1904, 37, p. 8 39).
The production of ozone in small quantities during electrolysis, and by the so-called silent discharge, has long been known, and the Siemens induction tube has been developed for use industrially.