Gallium Sentence Examples
The elements gallium and indium were discovered in blende.
Richter in 1863, and of gallium, detected in certain zinc blendes by Lecoq de Boisbaudran in 1875.
Other elements predicted and characterized by Mendeleeff which have been since realized are gallium, discovered in 1875, and germanium, discovered in 1885 by Clemens Winkler.
Rubidium, caesium, thallium, indium and gallium were first discovered by means of this instrument; the study of the rare earths is greatly facilitated, and the composition of the heavenly bodies alone determinable by it.
These three he called ekaboron, ekaaluminium, and ekasilicon; and his prophecy was completely vindicated within fifteen years by the discovery of gallium in 1871, scandium in 1879, and germanium in 1886.
The metal is obtained from zinc blende (which only contains it in very small quantity) by dissolving the mineral in an acid, and precipitating the gallium by metallic zinc. The precipitate is dissolved in hydrochloric acid and foreign metals are removed by sulphuretted hydrogen; the residual liquid being then fractionally precipitated by sodium carbonate, which throws out the gallium before the zinc. This precipitate is converted into gallium sulphate and finally into a pure specimen of the oxide, from which the metal is obtained by the electrolysis of an alkaline solution.
Gallium forms colourless salts, which in neutral dilute aqueous solutions are converted on heating into basic salts.
The gallium salts are precipitated by alkaline carbonates and by barium carbonate, but not by sulphuretted hydrogen unless in acetic acid solution.
In neutral solutions, zinc gives a precipitate of gallium oxide.
Gallium is best detected by means of its spark spectrum, which gives two violet lines of wave length 4171 and 4031.Advertisement
But it is evident that the local particularism of the Lebanon was adverse to this union, and that even Gregory XIII., who sent the gallium to the patriarch Michael, and Clement VII.
The meadows are clothed with a rich vegetation - numberless Paeoniae, Scabiosae, Convolvulaceae, Campanulae, Eremurus, Umbelliferae, Gallium, Rosaceae, Altheae, Glycyrrhizae, Scorodosma foetida and Gramineae.
It was a rule of the church that the consecration of metropolitans could not be completed without their receiving the gallium from the hands of the pope.
This " time out " allows the gallium arsenide laser diode time to cool off.
For example, an extremely thin layer of gallium arsenide can be sandwiched between two layers of aluminum gallium arsenide.Advertisement
In modulation doping, facing layers of gallium arsenide and aluminum gallium arsenide squeeze electrons into an essentially two-dimensional electron gas, or 2DEG.
One involves experimental and numerical research into the behavior of liquid gallium under the combined action of a temperature gradient and a magnetic field.
We grow layers of crystals containing indium, phosphorus, gallium and arsenic on wafers of indium phosphide.
Ongoing work includes using ion implantation for novel device and circuit architectures and for processing gallium nitride in novel ways.
Eucharistic or any other liturgical vestments were unknown until late in the 5th century, when certain bishops were honoured with the same gallium worn by civil officials (see Vestments).Advertisement
A gallium scan or bone scan is a test in which a radioactive chemical is injected into the body.
Gallium oxide Ga203 is obtained when the nitrate is heated, or by solution of the metal in nitric acid and ignition of the nitrate.