Shanghai Dingwujin Chemical Co., Ltd. is one of the leading manufacturers and suppliers of propylene glycol in China. We are committed to the chemical distribution across Central & Eastern Europe and Ukraine. We warmly welcome you to wholesale customized propylene glycol made in China here from our factory.
Propylene Glycol
Introduction
Characteristics
|
Molar Weight |
76.1 g/mol |
|
Melting Point |
-57.2°C |
|
Boiling Point |
187.2°C |
|
Flash Point |
104.4°C |
|
Density |
1.035 g/cm3 |
|
Forms |
Viscous, Liquid (clear), Colorless |
Product Grades
Industrial Grade
Purity≥98.5%-99.7%. Used in resin synthesis, antifreeze, and coatings. Not for food or pharmaceutical use.
Food Grade
Purity≥99.0%. Heavy metals limited (lead≤1 mg/kg), other impurities strictly controlled. Used as food additive, flavor solvent, and in packaging.
Pharmaceutical Grade
General: Purity≥98.5%, moisture ≤0.2%, heavy metals ≤5 ppm. For oral and topical applications.
Injection: Purity ≥99.0% (≥99.5% for some specs), moisture ≤0.1%. Strict limits on ethylene glycol and diethylene glycol; endotoxins ≤0.012 EU/mg.
Electronic Grade
Purity≥99.8%-99.9%. Ionic impurities, particulates, and metal ions tightly controlled at ppb levels. Used in semiconductor cleaning and photoresist solvents.
Standard stock items are industrial grade. For special-grade orders, please contact us for full documentation.
Uses and Applications
Key applications
- Anti-freeze
- Agricultural
- Paint and Coatings
- Rubber
- Polyesters
- Food Additive
- Corrosion Inhibitor and Anti-scaling Agent
- Resins
- Solvents
- Pharmaceuticals
- Lubricants
- Personal Care
- Building & Construction Products
Industries
- Beauty & Personal Care
- Pharma
- CASE & Construction
- Chemical Processing
- Rubber
Propylene Glycol Used in the Pharmaceutical Industry
Propylene glycol is an important pharmaceutical excipient utilised in oral, topical and injectable formulations. It functions as a solubilising agent for poorly soluble drug substances, and acts as a humectant within ointment and cream bases. It also serves as a stabiliser and solubiliser for inhalant and eye‑drop preparations.
Propylene Glycol Used in the Cosmetic Industry
In skincare formulations, propylene glycol exhibits hygroscopic properties. It may be incorporated as a formulation component to support the delivery of active substances including vitamins and UV filters within cosmetic systems.
Propylene Glycol Used in the Food Industry
Food‑grade propylene glycol adjusts water‑activity characteristics for food processing applications. In pastries and beverages, it functions as an emulsifier to optimise texture, prevent sugar crystallisation and maintain a smooth mouthfeel.
Propylene Glycol Used in the Coating Industry
In industrial manufacturing, propylene glycol is used as a solvent to effectively dissolve various chemicals in paints, coatings.
Propylene Glycol Used in the Automobile Industry
Propylene glycol is also used in antifreeze and brake fluids, as its low freezing point prevents the vehicle from freezing in cold weather.
Propylene Glycol Used in the Animal Feed Industry
In the field of animal husbandry, propylene glycol is used as a feed additive to improve palatability and energy density of feed. It helps animals maintain energy balance, and is particularly used in dairy farming to prevent ketosis and promote milk yield.
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