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| 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:National standards: GB1270-1996 chemical pure grade
| Index name |
Technical grade |
Chemically pure
(CP grade) |
| Content(Co)% ≥ |
24.0 |
98 |
| 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)% ≤ |
0.005 |
0.005 |
| Copper(Cu)% ≤ |
0.005 |
0.005 |
| Lead (Pb)% ≤ |
0.001 |
|
| Arsenic (As)% ≤ |
0.001 |
|
| 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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