Cobaltous chloride

Molecular formula:CoCl2.6H2O
Molecular weight:237.93
Property:Pink or mauve crystal belonging to monoclinic system,density:1.924g/cm3,melting point:86,stable under room temperature. It turns blue when heated and turns red in the moist air by cooling. Freely soluble in water, alcohol, aether, acetone and glycerin. It changes into anhydride(blue power) when the crystal water is lost.
Specification:Enterprise standard:GB1270-85 chemically pure grade

Index name Technical grade Chemically pure
(CP grade)
Content(Co)% ≥ 24.0 24.3
Sulfate (SO4)%≤   0.02
Nitrate (NO3)% ≤   0.05
Manganese (Mn)% ≤ 0.02 0.02
Iron (Fe)% ≤ 0.005 0.002
Nickle (Ni)% ≤ 0.05 0.05
Zinc (Zn)% ≤ 0.02 0.05
Copper(Cu)% ≤ 0.01 0.01
Lead (Pb)% ≤ 0.002  
Arsenic (As)% ≤ 0.002  
Insoluble substance in water % ≤ 0.03 0.03
Alkali metals & alkaline earth metal(base on sulfate)%≤   0.3

Application area:Used in producing barometrograph, gravimeter in instruments manufacturing industries, paint drier in coating industry, gas defense mask in national defence industry, sympathetic ink, cobalt chloride test paper, allochroic silicagel and nitrogen absorbent. Also used as colorant in ceramic industry,beer foam stabilizer in brewing manufacturing industry,catalyzer in chemical reaction,spot analysis in analytical chemistry.
Packing:25kg pail

 
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