The Principles of Chemistry, Volumen2Longmans, Green, and Company, 1891 |
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Página 39
... not come into. FIG . 80. - Distillation of zinc in a crucible placed in a furnace . o c , tubes along which the vapour passes and condenses . FIG . 81 .-- Extraction of boric acid in Tuscany. ZINC , CADMIUM , AND MERCURY 39.
... not come into. FIG . 80. - Distillation of zinc in a crucible placed in a furnace . o c , tubes along which the vapour passes and condenses . FIG . 81 .-- Extraction of boric acid in Tuscany. ZINC , CADMIUM , AND MERCURY 39.
Página 57
... boric acid . If they are mixed in solution with hydrochloric acid , boric acid is liberated , and if a piece of turmeric paper be immersed in this solution and then dried , the excess of hydrochloric acid volatilises , while the boric ...
... boric acid . If they are mixed in solution with hydrochloric acid , boric acid is liberated , and if a piece of turmeric paper be immersed in this solution and then dried , the excess of hydrochloric acid volatilises , while the boric ...
Página 58
... Boric acid was after- wards found in sea - water and in certain mineral springs.2 Its presence 1 Borax is either straightway extracted from lakes ( the American lakes give about 2000 tons and the lakes of Thibet about 1000 ) , or by ...
... Boric acid was after- wards found in sea - water and in certain mineral springs.2 Its presence 1 Borax is either straightway extracted from lakes ( the American lakes give about 2000 tons and the lakes of Thibet about 1000 ) , or by ...
Página 59
... boric acid . The greater portion of the boron compounds employed in the arts is obtained from the impure boric acid which is extracted in Tuscany from the so - called suffioni . In these localities , which present the remains of ...
... boric acid . The greater portion of the boron compounds employed in the arts is obtained from the impure boric acid which is extracted in Tuscany from the so - called suffioni . In these localities , which present the remains of ...
Página 60
... boric acid on a solution of sodium carbonate . As borax may be perfectly purified by crystallisation , it is employed as a means for obtaining pure boric acid . If a saturated and hot solution of borax be mixed with strong earth , by ...
... boric acid on a solution of sodium carbonate . As borax may be perfectly purified by crystallisation , it is employed as a means for obtaining pure boric acid . If a saturated and hot solution of borax be mixed with strong earth , by ...
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Términos y frases comunes
acetic action alkali alloy alumina aluminium ammonia ammonium analogous anhydride anhydrous antimony aqueous arsenic atomic weight barium basic salts boiling boric boron cadmium calcium carbon bisulphide carbonic acid carbonic anhydride cast iron charcoal chemical chloranhydride chloride chromic acid chromium cobalt colour colourless combination composition compounds containing copper corresponding crystalline crystals cupric cupric oxide cyanide decomposed decomposition dilute dioxide dissolves double salts easily elements evaporated evolved example excess feeble ferrous fluoride formation fused gives heated hydrate hydrochloric acid hydroxide hypophosphorous acid ignited insoluble instance isomorphous lead lead dioxide liquid magnesium manganese manganous mass mercury metals mixture molecules nitrate nitric acid nitrogen obtained ordinary temperature oxidised oxygen peroxide phosphoric acid phosphorus platinum potassium powder precipitate presence properties quantity reaction silica silicon silver sodium soluble in water solution specific gravity substance sulphate sulphide sulphuretted hydrogen sulphuric acid sulphurous anhydride volatile volume whilst yellow zinc
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