Handbook of Chemistry, for School and Home UseWoolworth, Ainsworth, & Company, 1869 - 205 Seiten |
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Seite 56
... sulphide , PbS . The galena is roasted in a reverberatory furnace , with the addition of a small quantity of lime to form a fusible slag with any silicious mineral matter present in the ore . By the action of the air , a portion of the ...
... sulphide , PbS . The galena is roasted in a reverberatory furnace , with the addition of a small quantity of lime to form a fusible slag with any silicious mineral matter present in the ore . By the action of the air , a portion of the ...
Seite 57
... sulphide of lead , which is insoluble in water . This can be done by dis- solving one pound of potassic sulphide ( sulphide of potassium ) in two gallons of water , and letting the solution remain in the pipe twelve hours , or until the ...
... sulphide of lead , which is insoluble in water . This can be done by dis- solving one pound of potassic sulphide ( sulphide of potassium ) in two gallons of water , and letting the solution remain in the pipe twelve hours , or until the ...
Seite 58
... sulphide , Cu , S ; ( 3 ) the carbonate or malachite ; and ( 4 ) the red or cuprous oxide , Cu2O . Copper is obtained on a large scale from the carbonate or oxide , by reducing these ores , together with carbon and some silica , in a ...
... sulphide , Cu , S ; ( 3 ) the carbonate or malachite ; and ( 4 ) the red or cuprous oxide , Cu2O . Copper is obtained on a large scale from the carbonate or oxide , by reducing these ores , together with carbon and some silica , in a ...
Seite 60
... sulphide or blende , the car- bonate or calamine , and the red oxide . In order to extract the metal , the powdered ore is roasted , to convert the sulphide or carbonate into oxide ; the roasted ore is then mixed with fine coal or ...
... sulphide or blende , the car- bonate or calamine , and the red oxide . In order to extract the metal , the powdered ore is roasted , to convert the sulphide or carbonate into oxide ; the roasted ore is then mixed with fine coal or ...
Seite 61
... sulphide , in sulphuric acid , or by the slow oxidation of iron pyrites , FeS2 . ( 1 ) Fe + H2SO1 = FeSO4 + H2 ( 2 ) FeS + H2SO1 = FeSO + H2S . The solution thus obtained yields , on evaporation , large green crystals of the salt . It ...
... sulphide , in sulphuric acid , or by the slow oxidation of iron pyrites , FeS2 . ( 1 ) Fe + H2SO1 = FeSO4 + H2 ( 2 ) FeS + H2SO1 = FeSO + H2S . The solution thus obtained yields , on evaporation , large green crystals of the salt . It ...
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acetic acetic acid affinity alcohol alkali allotropic alloy aluminic ammonia anhydride animal antimony atmosphere atomic weight atoms of hydrogen becomes bismuth bivalent burning calcic calcium called candle carbonic acid charcoal chemical chloric acid chloride coal coal-gas color combination combustion compounds contains converted copper crystals cylinder decomposition diastase dissolves distillation earth elements exposed fermentation filled flame flask furnace gases H₂O heat hydrate hydric sulphide hydrogen insoluble iron lead light lime liquid magnesium manganese manufacture matter melted mercury metal mixed mixture molecules molecules of H2O muriatic acid nitrate nitric acid nitrogen obtained oxide oxygen passes phosphorus plant platinum plumbic potassic potassium prepared properties pure quantivalence reverberatory furnace salt silicates silver small quantity soda soda-ash sodic sodium solid soluble in water solution starch substances sugar sulphate sulphuric acid symbol takes fire trivalent univalent vapor vegetable volatile wood zinc