Lessons in Elementary Chemistry: Inorganic and OrganicMacmillan, 1875 - 500 Seiten |
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acetic acid acting action albuminous aldehyde alkaline ammonia ammonium aniline antimony aqueous arsenic atoms of hydrogen benzene bodies boiling burns C₁ C₂ C₂H calcium carbon dioxide carbonic acid caustic potash CH₂ chemical chloride Cl₂ colour colourless liquid Combining Weight composition compounds constitution contained copper crystalline crystals cyanic acid cyanide decomposed decomposition density dissolves distillation elements ethene ether ethyl ethylamine fermentation ferric flame formed formula gases glycerin glycol grms H₂ H₂O heated hence hydrate hydride hydriodic acid hydrochloric acid hydrogen insoluble iodide iodine iron isomeric LESSON mercury metal mixture molecular weight molecule monoxide nitrate nitric acid nitrogen obtained occurs oxalic acid oxide oxygen phosphorus platinum possessing potassium powder precipitate prepared produced properties pure replaced salts silicon silver sodium solid soluble in water solution specific gravity substance sulphate sulphide sulphuric acid temperature trioxide tube vapour volatile volume whilst yellow yields zinc он
Beliebte Passagen
Seite 233 - or in a sealed tube ; it is slightly magnetic, and, like iron, combines with carbon and silicon. Metallic manganese is not used in the arts, but an alloy of this metal and iron is now made on a large scale, and used in the manufacture of steel. Some of its oxides are used for
Seite 44 - to the boiling point, the mercury in the barometer tube is found to stand at the same level as that in the trough, showing that the elastic force of the vapour at that temperature is equal to the atmospheric pressure. Hence water boils when the tension of its "vapour is equal to the superincumbent atmospheric pressure.
Seite 52 - divisions on the tube to which the mercury reaches, whilst the height of the column of mercury in the tube above the trough, together with that of the barometer and the temperature of the air, are also read off.
Seite 254 - and may be distilled at a white heat in an atmosphere of hydrogen. Antimony undergoes no alteration in the air at ordinary temperatures, but rapidly oxidizes if exposed to air when melted, and, if heated more strongly, it takes fire and burns with a white flame, giving off dense white fumes of antimony
Seite 206 - bleaching, and various other purposes in the arts. Formerly it was prepared from barilla or the ashes of sea-plants, but now it is wholly obtained from sea-salt by a series of chemical decompositions and processes, which may be divided into two stages: (1) Manufacture of sodium sulphate, or salt-cake, from sodium chloride (common salt) ; called salt-cake process.
Seite 19 - Water consists of 2 parts by weight of hydrogen and 16 parts by weight of oxygen, and its chemical symbol is therefore H 2
Seite 228 - when soft it can be pressed into wire, and with care it may be cast like brass, although when strongly heated in the air it takes fire and burns with a dazzling white light, with the formation of its only oxide, magnesia.
Seite 224 - a large number of other alums known, in which the isomorphous sesquioxides of iron, chromium, and manganese are substituted for the alumina in common alum : all these alums occur in regular octahedra, and cannot be separated by crystallization when present in solution together.
Seite 208 - on to the; hearths of the furnaces at each side of the decomposing pan, where the flame and heated air of the fire complete the decomposition into sodium sulphate and hydrochloric acid. (2) Soda-ash
Seite 99 - the unburnt gases will pass up the tube, and may be ignited at the other end, where they escape into the air. In the luminous part of the flame the gases are not completely burnt, and carbon is separated out in the solid state ; and it is to the presence of this carbon that the flame owes its luminous power.