Цинковый купорос
zinc sulfate monohydrate Zinc sulfate heptahydrate
Molecular Formula: ZnSO4 .H2O Molecular Formula:ZnSO4 .7H2O
HG2934-2000 HG/T 2326-2005
CAS# : 7446-19-7 CAS# : 7446-20-0
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.
Другие товары поставщика
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Сульфат натрия безводный |
Test items Food-grade High-purity grade Industrial-grade
Sodium sulfite (Na2SO3) % ≥ 97 98 97
Iron Fe % ≤ 0.001 0.001 0.003
Free Alkali (... |
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2,4-Толуилендиизоцианат |
Test items Index
Isocyanate % ≥99.0
Saponifiable chlorine % ≤0.01
Chlorine % ≤0.04
Crystallizing point℃ % 5.0-6.5
Chromaticity (Hazen... |
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Цианид натрия Китай |
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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Сульфид натрия |
Class 1 Class 2 Class 3
Test items Superior grade A first-rate product Acceptable product A first-rate product Acceptable product
Sodium Sulphi... |
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оксид цинка |
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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