Zinc sulfate
Testing Items monohydrate heptahydrate
Appearance White powder --
Zinc Sulphate content % ≥ 96.09 99
Zn % ≥ 35 22.51
Pb % ≤ 0.001 0.001
As % ≤ 0.0005 --
Cd % ≤ 0.001 0.001
Fineness 60~80 mesh % ≥ 95 --
Water insoluble matter % ≤ -- 0.02
PH % ≥ -- 3
Fe % ≤ -- 0.003
Mn % ≤ -- 0.005
Packaging: 25kg Weaving.
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Zinc oxide |
Test items Indirect method Direct method
Zinc oxide(counted by dried substances )% ≥ 99.7 99.5
Metal ( Zn ) % ≤ None None
Lead oxide( Pb ... |
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Sodium Dichromate |
Item Index
Sodium Dichromate(Na2Cr2O7O2H2O)% ≥ 99.3
Sulfate(SO4)% ≤ 0.2
Chloride(CL-)% ≤ 0.1
Package: 50kg plastic woven bag with plas... |
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Sodium Sulphide |
Class 1 Class 2 Class 3
Test items Superior grade A first-rate product Acceptable product A first-rate product Acceptable product
Sodium Sulphid... |
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Sodium cyanide |
Test items Index
Shape Lump
Sodium cyanide (NaCN) % ≥98.0
Sodiun hydroxide (NaOH) % ≤0.5
Sodium carbonate (Na2CO3) % ≤0.5
Water (H2O... |
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Zinc sulfate |
Testing Items monohydrate heptahydrate
Appearance White powder --
Zinc Sulphate content % ≥ 96.09 99
Zn % ≥ 35 22.51
Pb % ≤ 0.001 0.00... |
All supplier products
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