Propylene glycol

Propylene glycol

Propylene glycol (1,2-propanediol) is a colorless, odorless, transparent, viscous liquid with a slightly sweet taste and the chemical formula C₃H₈O₂. Possessing excellent moisturizing, dissolving, and penetrating properties, it is widely used in the food, cosmetic, pharmaceutical, and industrial sectors.

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Technical parameters
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Product Description

Basic Characteristics

1. Physical properties: Miscible with water, ethanol, and various organic solvents; exhibits very low volatility.

2. Safety: Classified as Generally Recognized As Safe (GRAS) by authoritative international bodies (such as the US FDA); non-toxic to humans when used within specified limits.

3. Primary source: Primarily produced via the hydration of propylene oxide; available in industrial grade and pharmaceutical/food grade (purity exceeding 99.5%).

Technical parameters

Quality specification
Iterm	Specification	Results
Identification	passed	passed
Appearance	Colorless clear viscous liquid	Colorless clear viscous liquid
Assay %	99.80min	99.39
Specific Gravity(25°C 99.39 ) g/cm³	1.035-1.038	1.035
Acidity(AS Acetic Acid) %	0.05max	0.002
Moisture %	0.10max	0.062
Colouring(Pt-Co) Hazen	10max	＜5
Conclusion	Qualified

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Product Name: Propylene glycol

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