Properties & Applications & PackagesInquiry

Product Overview

Propylene Glycol, also known as 1,2-Propanediol, Propane-1,2-diol, or Monopropylene Glycol, is an important multifunctional chemical with the CAS number 57-55-6. As a clear and viscous liquid, propylene glycol liquid exhibits excellent solubility, low toxicity, and high chemical stability. It is widely used as a heat transfer fluid, humectant, solvent, antifreeze component, and formulation additive across multiple industries.

Key Properties & Specifications

Melting point	-60 °C (lit.)
Boiling point	187 °C (lit.)
density	1.036 g/mL at 25 °C (lit.)
vapor density	2.62 (vs air)
vapor pressure	0.08 mm Hg ( 20 °C)
refractive index	n20/D 1.432(lit.)
Fp	225 °F
storage temp.	Store at +5°C to +30°C.
solubility	Chloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly)
pka	14.49±0.20(Predicted)
form	Viscous Liquid
color	APHA: ≤10
Specific Gravity	1.038 (20/20℃)1.036～1.040
PH	6-8 (100g/l, H2O, 20℃)
Odor	at 100.00 %. odorless very slight alcoholic
Odor Type	odorless
Optical Rotation	-0.11° (C=1.00g/100ml, CHCL3)
biological source	synthetic
explosive limit	2.4-17.4%(V)
Water Solubility	miscible
Sensitive	Hygroscopic

Applications

Industrial & Energy Systems

Industrial propylene glycol is widely used as antifreeze and heat-transfer fluid in propylene glycol for boilers, propylene glycol for chillers, HVAC systems, and propylene glycol for wood boiler applications. It is also used in propylene glycol deicing fluid formulations for aviation and infrastructure.

Chemical & Manufacturing

Used as a base material and solvent, raw propylene glycol plays a key role in resins, plasticizers, coatings, and industrial formulations.

Food Industry

Food-grade propylene glycol food additive (E1520) is used as a humectant, carrier, and stabilizer in flavors, colors, and processed foods, compliant with international food regulations.

Cosmetics & Personal Care

Propylene glycol for cosmetics is valued for its moisturizing properties and is commonly used in creams, lotions, shampoos, and toothpaste.

Pharmaceutical Industry

Pharmaceutical propylene glycol (USP grade) is widely used as a solvent and excipient in oral, injectable, and topical formulations.

Packaging & Supply Capability

Greenchem International supplies propylene glycol for sale in various packaging options, including 215 kg drums, IBC tanks, and bulk shipments. We support long-term contracts, OEM supply, and customized logistics solutions.
As a reliable propylene glycol supplier and propylene glycol manufacturer, we offer competitive pricing for propylene glycol wholesale and bulk orders worldwide.

Why Choose Greenchem International

Stable supply from trusted mono propylene glycol manufacturers
Flexible MOQ for propylene glycol purchase and trial orders
Competitive pricing, including cheap propylene glycol options for industrial buyers
Full documentation: COA, MSDS, food & pharmaceutical compliance
Global shipping and export experience

Ordering & Inquiry

Looking to buy propylene glycol or propylene glycol buy online?
Contact Greenchem International today with your required grade, quantity, and destination. Our team will provide fast quotation, technical support, and reliable delivery solutions.