Methylene Chloride
Test items Index
Methylene Chloride % ≥99.95
Water % ≤0.01
Acid (HCl) % ≤0.0004
Chromaticity Hazen Unit(Pt-Co Color) ≤10
Residue after evaporation % ≤0.0005
Add stabilizer to the amount not included in the mass fraction of dichloromethane.
Packing:Net weight is 250kg iron drum.
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Hydrochloric acid |
Item Index
Total acidity(HCI) ≥ 31.0
Iron(Fe) ≤ 0.002
Residue on ignition % ≤ 0.05
Free chlorine(CI)% ≤ 0.004
Arsenic(As)% ≤ 0.... |
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Zinc phosphate |
Project Medicine raw material special-purpose Feed additive special-purpose Sweetening agent special-purpose Rubber special-purpose Paint special-p... |
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Zinc sulfate |
zinc sulfate monohydrate Zinc sulfate heptahydrate
Molecular Formula: ZnSO4 .H2O Molecular Formula:ZnSO4 .7H2O
HG2934-2000 HG/T 2326-2005
CAS... |
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Sodium metabisulfite |
Test items Refined High-purity grade Food-grade Industrial-grade
Sodium metabisulfite % ≥ 98.5 98 97.5 97.0
Iron Fe % ≤ 0.0005 0.001 0.0015... |
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Dimethylamine |
Appearance: colorless transparent liquid.
Dimethylamine ≥ 99.8%;
Monomethylamine ≤ 0.10%;
Trimethylamine ≤ 0.05%;
Ammonia ≤ 0.03%;
Purposes: m... |
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