Products Description
Propylene glycol (PG) is a clear viscous, colorless liquid, which is nearly odorless and possesses a faintly sweet taste. Its chemical formula is C3H8O2. 1,2-Propanediol contains two alcohol groups, it is classed as a diol. It's miscible with a broad range of solvents, including water, acetone, and chloroform.
| Product Name | Propylene glycol |
| Synonyms | 1,2-Propanediol |
| Density | 1.036 g/mL at 25 °C (lit.) |
| Melting Point | -60 °C (lit.) |
| Boling Point | 187 °C (lit.) |
| Specific Rotation(α) | n20/D 1.432 (lit.) |
| Flash Point | 225°F |
| Water Solubility | miscible |
| Vapor Presure | 0.08 mm Hg ( 20 °C) |
| Vapor Density | 2.62 (vs air) |
| Appearance | Viscous Liquid |
| Purity | 99.9% |
To get a complete product specification please contact us. sales@gneebio.com
Uses
- Food industry: 99.9% Propylene glycol (PG) is commonly used as food additives to prevent food from drying out and prolong shelf life; it can also be used as a solvent for spices and pigments to enhance the organoleptic quality of food.
- Pharmaceutical industry: It is a common auxiliary in drug preparation, can be used as solvent to dissolve insoluble drugs; in ointment, cream and other topical preparations, it plays the role of moisturising and thickening; propylene glycol liquid can also be used in the preparation of antifreeze, to prevent drugs from freezing in low temperature environment.
- Cosmetic industry: Added to skin care products, cosmetics, the use of its moisturising properties, to maintain skin moisture; in perfume and other products, as a solvent to help dissolve fragrances, so that the aroma is evenly distributed.
- Industrial applications: As a solvent and plasticiser in the paint and ink industry; in the production of antifreeze, Propylene glycol solvent can lower the freezing point of water after mixing with water to improve the antifreeze performance of antifreeze.


GNEE BIO is the partner to order chemicals as we focus on good contact with our customers, fast delivery and competitive prices. Our goal is to unburden companies completely when purchasing chemical raw materials. Are you wondering whether our propylene glycol liquid CAS 57-55-6 is suitable for your application? Request the MSDS from us with all the risks of the substance.
Packaging
Packaging can be customized to your needs.

Company Profile
GNEE BIO specializes in the international trade industry and has set its sights on becoming an international supply chain.
The company has decades of experience in producing and selling high-quality chemicals, offering organic chemicals, biochemicals, pharmaceutical intermediates and other products.
We have a highly skilled R&D team. Our team of more than 200 people is responsible for one-stop service of quality inspection, production control and after-sales service. We provide R&D and production solutions for our global customers.
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FAQ
Q: How can I get samples?
A: We are honored to provide samples for you. For common products, you only need to bear the shipping cost; for high value products, you only need to bear the shipping cost and a small amount of product cost.
Q: How and when can I receive the goods after payment?
A: For small quantities, we will deliver the goods to you by international express (DHL, FedEx, T/T, EMS, etc.) or by air. Normally, it will take 2-5 days for you to receive the goods.
For large quantities, ocean freight is preferred. It takes a few days to a few weeks to reach the destination port, depending on the location of the destination port.
Q: How do you handle product safety and regulatory issues?
A: We have a dedicated team responsible for monitoring and complying with relevant regulations and standards. We conduct regular internal audits and training to ensure that all employees are aware of and comply with safety and regulatory requirements. In case of any changes in regulations, we will take prompt action to adjust our production and sales strategies to ensure the continued compliance of our products.
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