Hand-book of Chemistry, Volume 2Cavendish Society, 1849 - 504 pages Several volumes contain reports of the meetings of the Cavedish Society. |
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Common terms and phrases
absorbed according acid gas alcohol alkaline ammonia anhydrous aqueous solution Balard baryta Berzelius boiling boracic acid bromine carbonic acid charcoal Chem Chim chlorate chloric acid chlorine gas colour colourless combination combustion compound contains converted cooling copper crystals Davy decomposed decomposition detonating gas dilute dissolved distilled evaporated evolved excess flame gaseous gases Gay-Lussac Gilb glass hydrate hydriodic acid hydrochloric acid hydrogen hydrosulphuric acid hypochlorous ignited iodic acid iodide iodine iron likewise lime liquid manganese mercury metallic chloride metallic oxides mixed mixture nitrate nitric acid nitrogen nitrous obtained odour oil of vitriol ordinary temperatures oxygen oxygen gas passed peroxide Pharm Phil phosphate phosphoric acid phosphorus Phys Pogg potash potassa potassium precipitate produced retort salifiable bases salts saturated Schw selenious selenious acid selenium Serullas silver small quantity SO³ soda soluble specific gravity substance sulphate sulphide sulphuric acid takes fire terchloride Thénard tube vapour vessel volume yellow yields zinc
Popular passages
Page 4 - MnO, may, when combined with a larger quantity of oxygen, produce an acid, eg MnO3. In the base, the electro-positive nature of the metal exerts the greater power; in the acid, the electro-negative tendency of the oxygen has the advantage. These basic metallic oxides may be divided into three classes. Inorganic Alkalis. These oxides are soluble in water, — corrode animal substances, — have a soapy or urinous taste — change the colour of most blue or red flowers to green, the yellow colour of...
Page 75 - ... receiver of the air-pump : the water then evaporates before the peroxide of hydrogen. The fluid is agitated from time to time. If it should deposit flakes of silica, which give rise to the escape of oxygen gas, it must be decanted off from them by means of a siphon: if it should evolve oxygen — which it will do as soon as it is so far concentrated as to contain about 250 times its volume of oxygen — two or three drops of sulphuric acid must be added to it. The concentration must be stopped...
Page 435 - It is insoluble in alcohol; but when exposed to the air under alcohol, it dissolves as normal carbonate, evolving carbonic anhydride. It has been found native in considerable quantity in the deposits of guano on the western coast of Patagonia, in the form of white crystalline masses, with a strong ammoniacal smell. (Ulex. Ann. Ch. Pharm. Ixvi. 44.) c. Sesquicarbonate, СЮ'К'Н...
Page 31 - Hydrogen gas gives a much smaller flame than oletiant gas (1 volume of hydrogen requires halt a volume of oxygen, and 1 volume of olefiant gas requires 3 volumes of oxygen to burn it). Hydrogen gas mixed with nitrogen gives a still smaller flame than pure hydrogen. The flame of hydrogen gas in oxygen is smaller than that of the same gas in air ; but there is this anomaly observed, that hydrogen gives a smaller flame in air than it does in chlorine or nitrous oxide gas, — although 1 volume of hydrogen...
Page 75 - ... under the receiver of the air-pump : the water then evaporates before the peroxide of hydrogen. The fluid is agitated from time to time. If it should deposit flakes of silica, which give rise to the escape of oxygen gas, it must be decanted off from them by means of a siphon : if it should evolve oxygen...
Page 19 - Experiment* and Observations on different kinds of air. London, 1775 ...1777. 2, 29 ; 3, 1. Priestley. Experiments and Observations relating to various branches of Natural Philosophy.
Page 389 - The tube containing the nitrate of silver is immersed in water covered with a thin stratum of oil, and heated by means of a spirit-lamp communicating with a reservoir at a constant level.
Page 424 - C. 5'96 pts. ammonia. 1 vol. water by absorbing 505 vols, ammonia, forms a solution occupying 1'5 vols., and having specific gravity 0'9 : this, when mixed with an equal bulk of water, yields a liquid of specific gravity 0'9455: whence it appears that aqueous ammonia expands on dilution.
Page 74 - Preparation. — Pure baryta is prepared by igniting, in a porcelain retort, nitrate of barium free from iron and manganese. The baryta, broken into pieces about the size of a nut, is then put into a coated glass tube and heated to low redness, while a current of oxygen gas free from carbonic acid and dried by means of quicklime, is passed over it.
Page 282 - ... the chance of explosion, it is best to pour the bromine into a wide-mouthed bottle, and introduce perfectly dry phosphorus in a glass tube, sealed at bottom, and placed upright in the liquid ; so that on closing the bottle, the bromine vapour may slowly come in contact with the phosphorus.