Toluene-2,4-diisocyanate
Test items Index
Isocyanate % ≥99.0
Saponifiable chlorine % ≤0.01
Chlorine % ≤0.04
Crystallizing point℃ % 5.0-6.5
Chromaticity (Hazen) ≤50
Density (20℃)g/cm3 1.21-1.23
Refractive index n020 1.564-1.568
Acidity (HCI) ≤0.04
2.4-TDI Structure isomer ≤64.0
2.6-TDI Structure isomer ≤36.0
Packing:Net weight is 250kg iron drum.
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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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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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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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Dimethylamine |
Appearance: colorless transparent liquid.
Dimethylamine ≥ 99.8%;
Monomethylamine ≤ 0.10%;
Trimethylamine ≤ 0.05%;
Ammonia ≤ 0.03%;
Purposes: m... |
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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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