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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Hydrogen fluoride |
HF:≥99.95%;
H2O:≤0.03%;
SO2:≤0.007%;
H2SO4:≤0.005%;
H2SiF6:≤0.010%. |
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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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Dimethylamine |
Appearance: colorless transparent liquid.
Dimethylamine ≥ 99.8%;
Monomethylamine ≤ 0.10%;
Trimethylamine ≤ 0.05%;
Ammonia ≤ 0.03%; |
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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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Anhydrous Sodium Sulfite |
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 (N... |
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