Propylene Glycol
Propylene glycol (PG), chemical formula C₃H₈O₂, CAS number 57-55-6, is a colorless, odorless, transparent liquid with a slightly sweet taste.
It is highly hygroscopic, readily soluble, and has low toxicity; it is miscible with water, alcohols, and many organic solvents.
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Product Description

06


Propylene glycol (PG), chemical formula C₃H₈O₂, CAS number 57-55-6, is a colorless, odorless, transparent liquid with a slightly sweet taste.

It is highly hygroscopic, readily soluble, and has low toxicity; it is miscible with water, alcohols, and many organic solvents.

Packaged in 200L iron drums, custom packaging is available.

IndexTechHighUSP
China
standard
International
standard
Purity (as PG by wt %)99.5 min99.5 min99.5 min99.8 min
Moisture by wt %0.2 max0.2 max0.2 max0.1 max
Color APHA, Pt-Co10 max5 max10 max10 max
Specific Gravity d20201.037~1.0391.036~1.0391.035~1.0371.035~1.039
Index of Refraction nD201.431~1.4351.430~1.4351.431~1.4321.431~1.435
Free acid (as CH3COOH) by ppm75 max///
Free acid (ml 0.1N NaOH/10ml)//0.05 max0.01 max
Alkalinity (as OH- mmol/100g)/0.05 max//
Residue on ignition by ppm80 max/70 max20 max
Distillation range (IBP-DP) by ºC/183~189/186~189
Distillation range (L) by ºC184~189/184~189/
Distillation range (U) by ºC184~189/184~189/
Distillation volume, by vol%95 min///
Chloride as Cl by wt %//0.007 max0.0001 max
Suphate as SO42- by wt %//0.006 max0.001 max
Heavy metal as Pb by ppm//5 max5 max
Iron as Fe by ppm//0.5 max0.5 max
Arsenic by ppm//1 max/
Ethylene Glycol by ppm//0.008 max/
Diethylene Glycol by ppm//0.008 max/
OdoryesyesSlight odorodorless


Product Application

应用领域


Main Application Areas

1. Food Industry (Food-grade Propylene Glycol): 

Used as a humectant, solvent, emulsifier, and stabilizer in fragrances, flavorings, food colorings, baked goods, and antifreeze formulations, exhibiting good safety and food contact compatibility.

2. Pharmaceutical and Cosmetic Industries: 

Used as a drug solvent, ointment base, and antibacterial preservative carrier in pharmaceuticals; and as a humectant and lubricant in cosmetics, commonly found in lotions, creams, shampoos, and toothpastes. It is mild, non-irritating, and has good hygroscopic properties.

3. Daily Chemicals and Personal Care: 

Used in detergents, shaving foams, perfumes, and skincare products to improve product moisturizing and flowability.

4. Industrial Applications: 

Used as an antifreeze and refrigerant (similar to ethylene glycol, but with lower toxicity); as a solvent or plasticizer in resins, plastics, inks, coatings, and lubricants; used in specialty formulations such as smoke engine oils, hydraulic fluids, and cutting fluids.

5. Electronics and Environmental Protection: 

Used as an electronic coolant and heat transfer medium in environmentally friendly de-icing fluids and thermal energy storage systems.

Factory Display

工厂2


Focusing on chemical import and export trade, deeply cultivating the global chemical industry chain, providing customers with compliant and efficient customized trade solutions. Our business covers basic chemical raw materials (such as formic acid and acetic acid), fine chemical intermediates, functional chemicals, and compliant hazardous chemicals, matching the needs of multiple industries such as agriculture, medicine, leather, rubber, etc.

We have established strategic cooperation with high-quality chemical enterprises at home and abroad to control product quality (ISO 9001, SGS testing), relying on port compliant warehousing and global dangerous goods logistics standards (IMDG/IATA/ADR) to ensure safe delivery of goods. Equipped with a professional compliance team, proficient in global regulatory requirements such as EU REACH and US TSCA, to assist in completing full process compliance services.

In terms of service, we provide small batch trial orders and customized packaging for small and medium-sized customers, and long-term supply agreements and technical support for large customers; Simultaneously recommend suitable product categories based on market insights. In the future, we will deepen cooperation in emerging markets, expand the categories of green chemicals and new energy materials, and continue to inject efficient link value into global chemical trade.