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molecular formula: coso4·7h2o
molecular weight: 281.01
properties: red crystal with a little brown yellow. specific gravity is 1.948. soluble in water and glycerin, slightly soluble in ethyl alcohol.
uses: in producing cobalt sales, paint driers, additives for alkaline storage battery, and etc.
standard:
| specification/item |
工业
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assay [co] /%
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≥20
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water insoluble matter/%
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≤0.02
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chloride (cl) /%
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≤0.1
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nitrate (no3)
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≤0.1
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manganese (mn)
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≤0.05
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iron (fe) /%
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≤0.005
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nickel (ni)
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≤0.1
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zinc (zn)
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≤0.05
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heavy metal(cu) /%
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≤0.02
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packing: plastic woven bag lined with plastic bag, kraft paper bag, or fiber drum, net weight is 25kg.
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