Product description
|
Product name
|
Standard
|
Packing
|
|
Zinc sulphate
|
Reagent grade
|
25kg
|
Molecular formula：ZnSO4·7H2O
Molecular weight：287.54
【Property】Colorless orthorhombic crystal, particle or powder, no odor.
【Usage】Used in the production of lithopone, it can also be used as mordant, astringent, wood preservative, etc.
【Standard】
|
Index
|
Standard
|
|
AR
|
CP
|
|
Appearance
|
Qualified
|
Qualified
|
|
Content/%
|
≥99.5
|
≥99.0
|
|
Clarity test
|
Qualified
|
Qualified
|
|
Water insoluble matter/%
|
≤0.01
|
≤0.02
|
|
Chloride (Cl)/%
|
≤0.0005
|
≤0.002
|
|
Total nitrogen (N)/%
|
≤0.001
|
≤0.002
|
|
Manganese (Mn) /%
|
≤0.0003
|
≤0.001
|
|
Iron (Fe)/%
|
≤0.0005
|
≤0.002
|
|
Arsenic (As)/%
|
≤0.00005
|
≤0.0002
|
|
Copper (Cu)/%
|
≤0.001
|
≤0.005
|
|
Cadmium Cd)/%
|
≤0.0005
|
≤0.002
|
|
Lead (Pb)/%
|
≤0.001
|
≤0.01
|
|
Non-sludging to ammonium sulfide (Calculated by sulfate)/%
|
≤0.05
|
≤0.20
|
【Packing】 Plastic woven bag lined with plastic bag, kraft bag, carton or cardboard drum, net weight 25kg.
