Hand Book of Chemistry, Nide 4Cavendish society, 1850 Several volumes contain reports of the meetings of the Cavedish Society. |
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Muita painoksia - Näytä kaikki
Yleiset termit ja lausekkeet
acid gas alcohol alkaline ammonia anhydrous antimonic oxide antimony aqueous solution arsenic arsenious acid atoms baryta becomes Berzelius Bucholz carbonate of potash carbonate of soda carbonic acid charcoal Chim chloride chromate chromic oxide chromium colour colourless compound containing converted cooling crucible crystalline crystals dark decomposed decomposition deposits dilute dissolved in water dried evaporated evolves excess filtered filtrate fused hydrated hydro hydrochloric acid hydrofluoric acid hydrogen gas hydrosulphuric acid ignited insoluble kermes likewise liquid manganese manganous oxide mass metallic Mitscherlich mixed mixture molybdenum molybdic acid nitrate nitric acid obtained oil of vitriol ordinary temperatures oxygen Peligot Pharm Phys Pogg potassium powder precipitate protochloride protoxide red heat residue sal-ammoniac salt saturated Schw sesquioxide small quantity soluble in water sulphate sulphide of antimony sulphuric acid tantalic acid tersulphide tungstate tungsten tungstic acid uranic oxide uranium uranoso-uranic oxide vanadic vanadic acid vanadic oxide vanadium vapour washed Wöhler yellow yields
Suositut otteet
Sivu 113 - Those chromic salts which are insoluble in water, dissolve for the most part in hydrochloric acid.
Sivu 272 - ... product with arsenic or sulphur, according as a darker or lighter colour is desired. This commercial product is amorphous, usually brown-red, opaque, and of variable composition, generally containing arsenious oxide. It is used as a pigment, though not so much now as formerly. Bisulphide of arsenic burns in the air with a blue flame, forming sulphurous and arsenious oxides. When deflagrated with nitre, it produces a bright white light. Indian u-hitefirc is a mixture of 24 pts.
Sivu 325 - Pulverized antimony is boiled with moderately strong nitric acid till it is converted into a white powder, which is then freed from nitric acid by repeated boiling with pure water.
Sivu 39 - It is of great use in the chemical arts owing to its properties of dissolving metallic oxides, and of forming a flux when heated with other substances. On this account it is much used in connection with the Blowpipe (qv), before which it yields...
Sivu 79 - SILICA AND MOLYBDIC OXIDE. — Bimolyldofluoride of Silicium. — The acid aqueous solution, when spontaneously evaporated, acquires a bluish tinge, and yields a black uncrystallizable mass, from which water dissolves out the blue salt, leaving the neutral compound in the form of a jet-black powder. This powder is resolved by the prolonged action of the water into an acid salt which dissolves, and an insoluble basic compound. By ammonia, which withdraws the hydrofluoric acid, it is converted into...
Sivu 292 - KO,2HO,AsO4 180-2 .... 100-00 100-00 .... 100-00 The crystals are permanent in the air, and give off but little water even at 288°. At a red heat, they fuse, give off water, and are converted into a pale yellow, very thin liquid, which, on solidifying, becomes white and opaque and splits in all directions. (Thomson.) The crystals dissolve in 5-3 parts of water at 6°, forming a solution of specific gravity 1-1134; they dissolve iu a much smaller quantity of hot water, but not in alcohol.
Sivu 303 - ... by the addition of ammonia solution, and then heated with a strong solution of tannic acid, which is added as long as any precipitate is formed. The precipitate is a compound of the active constituent and tannic acid, difficultly soluble in water. This is collected on a filter, washed with a small quantity of water and dried between paper. To...
Sivu 156 - AND CHROMIUM, and Hydrofluate of Silica and Chromic Oxide. — A solution of chromic oxide in hydrofluosilicic acid yields on evaporation, a transparent green, amorphous mass which deliquesces in the air, and, when it contains an excess of acid, swells up in the fire like alum, and again deliquesces if afterwards exposed to the air. (Berzelius, Pogg. 1, 201.) C. Chromate of potash fuses with glass, and forms a transparent, emerald-green glass. Chromic oxide does not dissolve in glass, but merely...
Sivu 318 - This result accords with actual experience, 100 parts of sulphide of antimony being found to yield '27 parts of antimony. According to Liebig, however, by leaving out the nitre in this process, 100 parts of sulphide of antimony produce 4-J parts of the metal.
Sivu 65 - Dumas has suggested that the compound produced when anhydrous sulphuric acid is conducted into an atmosphere of dry ammonia, may be considered hydrated sulphite of amidogen : NH3, SO3=HO, NH2, SO,.