A Dictionary of Chemistry, on the Basis of Mr. Nicholson's: In which the Principles of the Science are Investigated Anew, and Its Applications to the Phenomena of Nature, Medicine, Mineralogy, Agriculture, and Manufactures, Detailed, 第 1 巻Robert Desilver, 1821 - 14 ページ |
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acetic acetic acid acid gas alcohol alkali alum alumina ammonia animal antimony arsenic arsenic acid atom barytes blue bodies boiling carbonic acid charcoal chemical chemists chlorine coal cold colour combination combustion compound condensed consists contains cooling copper crystals cubic decomposed deliquescent dilute dissolved distillation earth evaporation experiments exposed flame fluid fluoric Gay-Lussac glass grains heat Hence hydrogen ignited inches insoluble lime liquid liquor lustre magnesia matter melts mercury metallic mineral mixed mixture muriatic acid nitrate nitre nitric acid obtained oxalic oxide oxide of iron oxygen particles phosphate phosphoric acid phosphorus portion potash pounds precipitate prime equivalent prisms produced proportion prussic pure quantity retort salt saturated silver Sir H soda solid soluble solution specific gravity Strontia substance sulphate sulphuretted sulphuric acid surface tained taste temperature tion tube vapour vegetable vessel volatile volume weight yellow
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5 ページ - Wells, u in the pride of half knowledge, smiled at the means frequently employed by gardeners to protect tender plants from cold, as it appeared to me impossible that a thin mat, or any such flimsy substance, could prevent them from attaining the temperature of the atmosphere, by which alone I thought them liable to be injured. But, when I had learned that bodies on the surface of the earth become, during a still and serene night, colder than the atmosphere, by radiating their heat to the heavens,...
8 ページ - Since all matter may be made to fill a smaller volume by cooling, it is evident that the particles of matter must have space between them ; and since every body can communicate the power of expansion to a body of a lower temperature, that is, can give an expansive motion to its particles, it is a probable inference that its own particles are possessed of motion ; but as there is no change in the position of its parts, as long as its temperature is uniform, the motion, if it exist, must be a vibratory...
6 ページ - When an instrument of this description has been successfully exhausted, if the ball that is empty be immersed in a freezing mixture of salt and snow, the water in the other ball, though at the distance of two or three feet, will be frozen solid in the course of a very few minutes. The vapour contained in the empty ball is condensed by the common operation of cold, and the vacuum produced by this condensation gives opportunity for a fresh quantity to arise from the opposite ball, with proportional...
10 ページ - ... a correction must be made for the general process, by subtracting a sum equal to their weight from the quantity of carbonate of lime obtained by precipitation from the muriatic acid. In arranging the products, the form should be in the order of the experiments by which they were procured.
7 ページ - Monge has discovered that the pyroligneous acid obtained from the distillation of wood has the property of preventing the decomposition and putrefaction of animal substances. It is sufficient to plunge meat for a few moments into this acid, even slightly empyreumatic, to preserve it as long as you please.
4 ページ - If strong nitrous acid, saturated with nitrous gas, be mixed with a saturated solution of muriatic acid gas, no other effect is produced than might be expected from the action of nitrous acid of the same strength on an equal quantity of water ; and the mixed acid so formed has no power of action on gold or platina. Again, if muriatic acid gas, and nitrous gas, in equal volumes, be mixed together over mercury, and...
8 ページ - Temperature may be conceived to depend upon the velocities of the vibrations; increase of capacity on the motion being performed in greater space ; and the diminution of temperature during the conversion of solids into fluids or gases, may be explained on the idea of the loss of vibratory motion, in consequence of the revolution of particles round their axes, at the moment when the body becomes fluid or aeriform, or from the loss of rapidity of vibration in consequence of the motion of the particles...
5 ページ - I had often, in the pride of half knowledge, smiled at the means frequently employed by gardeners to protect tender plants from cold, as it appeared to me impossible that a thin mat, or any such flimsy substance could prevent them from attaining the temperature of the atmosphere, by which alone I thought them liable to be injured. But when I had learned that bodies on the surface of the earth become, during a still and serene night, colder than the atmosphere, by radiating their heat to the heavens,...
8 ページ - The immediate cause of the phenomena of heat, then, is motion, and the laws of its communication are precisely the same as the laws of the communication of motion.