The Chemistry of Cyanogen Compounds and Their Manufacture and Estimation

action added addition alcohol alkali metal ammonia ammonium amount anhydrous aqueous solution barium salt blue boiling brown calcium carbon caustic cent Chem chloride colour combined completely composition compound considerable containing converted cooling copper crystals cupric cuprous cyanamide cyanate cyanide cyanide solution cyanogen decomposed decomposition described dilute dissolved distilled double salts dried estimated evaporated evolved excess ferric ferrocyanide ferrous ferrous salt filtered formation formed fused green heated hydrochloric acid hydrocyanic acid hydroxide insoluble iron latter lead liquid liquor magnesium manner mercuric method mixed mixture molecules of water needles nitrate nitric acid nitrogen obtained oxide passing potassium cyanide potassium ferrocyanide potassium salt potassium thiocyanate powder precipitate prepared presence produced pure quantity reaction readily reduced removed separates silver similar sodium soluble in water spent oxide strong sulphate sulphuric acid takes place temperature thiocyanate tion treated washed whole yellow yields zinc