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
|
assay [co] /%
|
≥20
|
water insoluble matter/%
|
≤0.02
|
chloride (cl) /%
|
≤0.1
|
nitrate (no3)
|
≤0.1
|
manganese (mn)
|
≤0.05
|
iron (fe) /%
|
≤0.005
|
nickel (ni)
|
≤0.1
|
zinc (zn)
|
≤0.05
|
heavy metal(cu) /%
|
≤0.02
|
packing: plastic woven bag lined with plastic bag, kraft paper bag, or fiber drum, net weight is 25kg.
|