A text book of chemical philosophy : on the basis of Dr. Turner's Elements of chemistry, in which the principal discoveries and doctrines of the science are arranged in a new systematic order

R.H. Small, 1829 - 616 pagina's

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Pagina 2 - District, has deposited in this office the title of a book, the right whereof he claims as proprietor, in the words following, to wit : " THE CHILD'S BOTANY," In conformity to the act of the Congress of the United States, entitled, " An act for the encouragement of learning by securing the copies of maps, charts, and books to the authors and proprietors of such copies, during the times therein mentioned...
Pagina 308 - For this purpose, pieces of tin are placed upon a well-polished sheet of copper, which, if the process is skilfully conducted, adhere uniformly to its surface. The oxidation of the tin — a circumstance which would entirely prevent the success of the operation — is avoided by employing fragments of resin, or muriate of ammonia, and regulating the temperature with great care.
Pagina 151 - Transactions for 1800, by Mr. E. Howard. It is prepared by dissolving 100 grains of mercury in a measured ounce and a half of nitric acid of specific gravity 1.3 ; and adding, when the solution has become cold, two ounces, by measure, of alcohol, the density of which is 0.849. The mixture is then heated till a moderately brisk effervescence takes place, during which the fulminating compound is generated.
Pagina 593 - A compound of these metals or their oxide may be dissolved in muriatic acid. If the iron is in a large proportion compared with the manganese, the following process may be adopted with advantage. To the cold solution, considerably diluted with water, and acidulated with muriatic acid, carbonate of soda is gradually added, and the liquid is briskly stirred with a glass rod during the effervescence, in order that it may become highly charged with carbonic acid. By neutralizing the solution in this...
Pagina 143 - Owing to its peculiarly porous texture, charcoal possesses the property of absorbing a large quantity of air, or other gases, at common temperatures, and of yielding the greater part of them when heated.
Pagina 335 - Nitrate of Silver. — Silver is readily oxidized and dissolved by nitric acid diluted with two or three times its weight of water, forming a solution which yields transparent tabular crystals by evaporation. These crystals, which are anhydrous, undergo the igneous fusion when heated, and assume a crystalline texture in cooling. At a red heat it is completely decomposed, and metallic silver remains. When liquefied by heat, and received in small cylindrical moulds, it forms the lapis infernalis or...
Pagina 332 - ... the carding will prevent the metal from running away, and in a few minutes it will cool and take the impression, without the slightest injury to the paper from which it was taken.
Pagina 54 - ... is converted into water by the heat of the sun. The temperature at which liquefaction takes place is called the melting point, or point of fusion ; and that at which liquids solidify, the freezing point, or point of congelation. The melting point of a given solid is always fixed and constant, but the degree of heat at which different solids melt varies exceedingly.
Pagina 122 - ... water with the first, and carbonic acid with the second. This happens remarkably in those compounds in which hydrogen and carbon are predominant, as in alcohol and the oils. It effects the decomposition of animal matters also. The cuticle and nails receive a permanent yellow stain when touched with it; and, if applied to the skin in sufficient quantity, it acts as a powerful cautery, destroying the organization of the part entirely. When oxidation is effected through the medium of nitric acid,...
Pagina 9 - The whole surface of the earth even undergoes modifications. Acted on by moisture and air, it affords the food of plants; an immense number of vegetable productions arise from apparently the same materials ; these become the substance of animals; one species of animal matter is converted into another; the most perfect and beautiful of the forms of...

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