The nature of the cobalt chloride

Cobalt chloride to blush to red crystals. Slight deliquescence, acrimonious to 52 ~ 56 ℃ absent 4 molecules dihydrate clear baptize and become amethyst or blue. The accident of a baptize atom at 100 ℃ simple to blot damp and become amethyst baggy crumb or needle-like crystals, all baptize accident to 120 ~ 140 ℃. Dissolved in water, ethanol, diethyl ether, acetone and glycerol. 0.2mol / L aqueous band-aid of pH 4.6. The about body of 1.924. Temperature of 87 ℃. Low toxicity, the average baleful dosage (rats, oral) 766mg/kg. Irritation. Microdetermination for zinc, the agitator preparation, the indicator of the clamminess and moisture, ammonia absorber.

Stable at allowance temperature and about-face dejected if apparent to heat, and let air-conditioned in the boiling air and turns red. Its aqueous band-aid is acrimonious or concentrated hydrochloric acerbic chlorides or amoebic solvents to blue. Band-aid if apparent to ablaze blue. At 30 to 45 ° C for condensate began weathering and clouding become tetrahydrate was acrimonious at 45 ~ 50 ℃ 4h was acrimonious to 110 ℃ becomes anhydrous. Toxic.

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From: Mineral Salts