Polyether polyol
Model Hydroxyl value Water content Acid value pH value Potassium Chromaticity Viscosity Degree of unsaturation
mgKOH/g ％ mgKOH/g mg/Kg APHA mPa.s/25℃ mol/Kg
GEP-560S 54.0-58.0 ≤0.08 ≤0.05 5-7 ≤3 ≤50 400-600 -
GSE-3048 46.5-49.5 ≤0.05 ≤0.05 - - ≤50 - ≤0.01
GEP-560 54.0-58.0 ≤0.08 ≤0.05 5-7 ≤3 ≤50 400-600 -
GEP-330N 33.5-36.5 ≤0.05 ≤0.05 5-7 ≤3 ≤50 750-950
GEP-330NY 33.5-36.5 ≤0.05 ≤0.08 5-7 ≤3 ≤50 750-950
GEP-828 26.0-30.0 ≤0.05 ≤0.08 5-7 ≤5 ≤50 950-1450
GEP-628 26.0-30.0 ≤0.05 ≤0.05 - ≤5 ≤80 1500-2100
GEP-360N 26.5-29.5 ≤0.05 ≤0.08 - ≤5 ≤80 1100-1600
GEP-570 23.5-26.5 ≤0.08 ≤0.08 5-7 ≤5 ≤200 1400-1800
GPOP-2042 27.5-31.5 ≤0.05 - 3000-5000
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Arsenic trioxide |
Main content Other impurities
Arsenic trioxide Iron Lead Chlorine Chromium Cadmium Water
As2O3 Fe Pb Cl Cr Cd 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 Carbonate |
Indicator name Industrial-grade Food grade
Total alkali content（Na2CO3）% ≥ 99.2 99.2
Sodium chloride（NaCl）% ≤ 0.7 0.7
Iron（Fe）% ≤ 0.003... |
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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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Ammonium sulfate |
Test items Index
Exterior White crystalline
Nitrogen ％ ≥ 21
Water (Ｈ2Ｏ) ％ ≤ 0.2
free carbonic acid (H2SO4)％ ≤ 0.03
Iron (Fe) ％ ≤ 0... |
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