Cobalt chloride hexahydrate

Mô tả

Red monoclinic system crystal. Melting point of 86 ° C relative density 1.924 Solubility soluble in water, soluble in ethanol, acetone and ether. Deliquescent, stable at room temperature and turn blue when exposed to heat, and turn red in the humid air in the cooling, soluble in water, alcohol, ether, acetone, glycerol, and acetic acid, becomes blue no monohydrate when lose crystal water.

Keywords：Chloride

ỨNG DỤNG

For making of barometer, hydrometer, invisible ink, etc..Cobalt chloride paper is blue when dry, into the pink when wet.The silicone can direct the moisture level of the silica gel when added a certain amount of cobalt chloride.Can also be used in the electroplating industry and as a feed additive.Used as a paint desiccant, ammonia absorbers, neutral dye, dry indicator, ceramic colorants, feed additives, etc.

Phiếu kiểm nghiệm

Item
(AR) (CP)
(CoCl₂·6H₂O)Assay,% ≥99.0 98.0
Insoluble matter in water,% ≤0.01       0.03
(SO₄)Sulfate,% ≤0.01      0.02
(NO₃)Nitrate,% ≤0.02      0.05
(Mn)Manganese,%                                    ≤0.005 0.02
(Fe)Iron,%                                         ≤0.001 0.002
(Ni)Nickel,%                                       ≤0.03 0.05
(Cu)Copper,%                                       ≤0.001 0.005
(Zn)Zinc,%                                         ≤0.002 0.05
Substances not
precipitated by ammonium sulfide,% ≤0.2 0.3