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Dow Propylene Glycol USP/EP grade high purity solvent CAS No. [57-55-6] Multifunctional raw material for cosmetics/food/pharmaceuticals

Dow Propylene Glycol (PG) is an ultra-high purity 1,2-propylene glycol produced by Dow Chemical using a patented propylene oxide hydration method, with a purity of ≥99.9%. As the world's leading diol supplier, Dow PG has passed multiple certifications such as FDA, USP, EP, and is widely used in cosmetic moisturizers, food additives, pharmaceutical excipients, and industrial antifreeze.
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Dow Propylene Glycol Dow PG USP Grade 57-55-6 CAS Number 1 2-Propanediol HPLC Grade Cosmetic moisturizer E-cigarette Oil Base Liquid

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Product Description
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CAS number57-55-6
Purity (GC)≥99.9%
Water content≤0.1%
Acidity (in acetic acid)≤0.005%
Ignition residue≤0.007%
Heavy metal (Pb)≤1ppm
Specific rotationContact Customer Service


Daily Chemical Industry: 

It is widely used in cosmetic moisturizers, food additives, pharmaceutical excipients and industrial antifreeze.

Product Advantage
1
Dual functional advantages:
Cosmetic grade: INCI compliant (Purity > 99.5%)
Food grade: FDA 21CFR 184.1666 certified (E1520)
Medical grade: USP/EP/ChP standard (injection grade optional)
2
Performance benchmark
Moisture absorption: Relative humidity absorption (RH50%) up to 56% (25°C)
Solubility: Dissolves > 60% natural essential oils
Safety: Acute oral toxicity LD50 = 20g/kg (rat)
3
Sustainable development 1
Biological content optional (ISCC PLUS certified)
4
Sustainable development 2
Carbon footprint reduced by 35% compared to traditional processes



Operation Guide


Safe operation

Wear protective equipment (gloves, goggles), avoid direct contact with skin/eyes;

Leakage treatment: collect adsorbent materials, rinse contaminated area with clean water.

Storage recommendations

Keep away from fire sources, store in separate warehouses from oxidants, and check the sealing regularly


FAQ
  • Q: What is the proportion of propylene glycol added to cosmetics?
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    A: ≤10% for general use, and up to 50% for perfume products.
  • Q: How to distinguish between food grade and industrial grade?
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    A: Food grade must meet USP/FCC standards, ignition residue ≤0.007%, heavy metal ≤5ppm.
  • Q: What is the compatibility with oils and fats?
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    A: It can be used as a raw material for fatty acid esterification to improve emulsification stability (refer to BYK-3900P leveling agent compatibility test).
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