PEG Poly(ethylene Glycol) CAS:25322-68-3
Chemical name: poly (ethyleneglycol)
Standard: EP & USP
CAS No.: 25322-68-3
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Product name: PEG 4000 Chemical name: poly (ethyleneglycol) CAS No.: 25322-68-3 Structure:
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Formula: HO(CH2CH2O)nH Standard: EP & USP |
SPECIFICATION
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Item |
Specification |
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Appearance |
White or almost white flakes or powder |
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Identification (A, B, C) |
Conforms |
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Appearance of solution (EP) |
Meet requirements |
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Completeness and color of solution (USP) |
Meet requirements |
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Acidity or alkalinity |
Meet requirements |
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pH (5% in water) |
4.5-7.5 |
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Average molecular weight |
3600-4400 |
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Viscosity (20°C) |
110-170mPa.s |
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Viscosity (98.9°C) |
110-158cst |
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Freezing point |
53-59°C |
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Hydroxyl value |
25-32 |
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Reducing substances |
Meet requirements |
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Formaldehyde |
15ppm Max |
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Ethylene oxide |
1ppm Max |
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Dioxan |
10ppm Max |
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Free ethylene oxide |
10μg/g Max |
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1,4-Dioxane |
10μg/g Max |
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Water |
1.0% Max |
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Sulfated ash (EP) |
0.2% Max |
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Residue on ignition (USP) |
0.1% Max |
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Heavy metals |
5ppm Max |
Properties: White or almost white flakes or powder with good water solubility.
Application: Used as thickeners, lubricants, mold release agents, defoaming agents, softeners, conditioners, sizing agents and dispersants.
Packing: In 20kgs carton.
Storage: Keep container tightly closed in a cool, dry and well-ventilated place, avoiding exposure of the packaged product to direct sunlight.
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