Elements of Chemistry: Including the Recent Discoveries and Doctrines of the ScienceJ. Grigg, 1828 - 499 pagina's |
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Overige edities - Alles bekijken
Elements of Chemistry: Including the Recent Discoveries and Doctrines of the ... Edward Turner Volledige weergave - 1829 |
Veelvoorkomende woorden en zinsdelen
according acetic acid acid gas action affinity albumen alcohol alkalies ammonia animal antimony arsenic atmosphere atomic weight atoms of water baryta Berzelius caloric carbonic acid carburetted charcoal chemical chemists chlorine cold colour colourless combination combustion composed composition compound consists contains converted copper crystals Davy decomposed decomposition deutoxide dilute disengaged dissolved Dr Thomson employed ether evaporation exposed ferrocyanate fluid fuses gases Gay-Lussac heated to redness hydriodic hydriodic acid hydrogen hydrogen gas insoluble iodine iron lead lime liquid magnesia manganese matter mercury metallic mixed mixture muriatic acid neutral nitrate nitric acid nitrogen obtained odour oxalic oxide oxygen oxygen gas peroxide phosphoric acid phosphorus platinum potassium powder precipitate principle procured properties proportion protoxide quantity red heat salts silver Sir H soda soluble in water solution specific gravity strontia substances sulphate sulphuretted hydrogen sulphuric acid taste temperature Thénard tion tube unites vapour vegetable vessels volatile yellow zinc
Populaire passages
Pagina 97 - ... additional quantity of oxygen, must contain 2, 3, or more atoms of oxygen ; some multiple in a word by a whole number of the quantity of oxygen contained in water. It is equally clear, from this view of the composition of water, that the weight of an atom of oxygen is eight times heavier than an atom of hydrogen.
Pagina 311 - 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 39 - ... 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. Thus, platinum is not melted at 3280°; iron...
Pagina 493 - CONVERSATIONS ON NATURAL PHILOSOPHY; in which the Elements of that Science are familiarly explained. Illustrated with plates. By the author of " Conversations on Chemistry," &c. With considerable additions, corrections, and improvements in the body of the work, appropriate Questions, and a Glossary. By Dr. Thomas P. Jones. The...
Pagina 145 - The agreeable pungency of beer, porter and ale is, in a great measure, owing to the presence of carbonic acid ; by the loss of which, on exposure to the air, they become stale. All kinds of spring and...
Pagina 335 - ... and when recently prepared, is exceedingly caustic to the taste', and touch. By age its caustic property is gradually lost, in consequence of the absorption of carbonic acid from the atmosphere. Potash is chiefly employed in making soft soap and glass. * The bi-carbonate of potash is prepared by transmitting a current of carbonic acid gas through a solution of the carbonate.
Pagina 69 - And where the connection between different pieces of copper was completed by wires, or thin filaments of the fortieth or fiftieth of an inch in diameter, the effect was the same ; every side, every surface, every particle of the copper remained bright, whilst the iron or the zinc was slowly corroded.
Pagina 99 - Hence we may conclude, that, in volatile vitriolic acid, a single ultimate particle of sulphur is intimately united only to a single particle of dephlogisticated air; and that, in perfect vitriolic acid, every single particle of sulphur is united to two of dephlogisticated air, being the quantity necessary to saturation.
Pagina 40 - If a pound of water at 32° be mixed with a pound of water at 172°, the temperature of the mixture will be intermediate between them, or 102°, — the mean tsmperature.
Pagina 366 - ... in water. These alkalies are, for the most part, very insoluble in water, and of sparing solubility in cold alcohol ; but they are all readily dissolved by that fluid at a boiling temperature, being deposited from the solution, commonly in the form of crystals, on cooling. Most of the salts are far more soluble in water than the alkalies themselves, and several of them are remarkable for their solubility. As the vegetable alkalies agree in several of their leading chemical properties, the mode...