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  • Propylene Glycol

Product Overview

Tripropylene Glycol Regular Grade (TPG) is a versatile chemical intermediate and solvent used in a variety of application areas. It is typically used as an initiator for urethane polyol synthesis from epoxides and as the polyol in some polyurethane foam systems. TPG from Dow is an excellent solvent in applications where high solvent power is needed.

Its water solubility, high solvent power, low volatility and high boiling point make it a material of choice for textile soaps and lubricants, cutting-oil concentrates and other similar products. TPG is also used as an initiator for urethane polyols.

Many ink removal creams use TPG as part of their formulation, taking advantage of its ability to dissolve inks. In personal care applications, the low toxicity, non-irritating nature, solvency and compatibilizing power of TPG are important characteristics in applications such as stick deodorants.


Fragrance, Cosmetics and Personal Care
Paint and Coatings
Other Applications


TPG is available from Dow in various quantities. Please contact us for details on availabilities in your region.

Physical Properties*

Physical Properties Units Tripropylene Glycol Regular Grade (TPG)
Chemical Name [(1-methyl-1,2-ethanediyl)bis(oxy)] bispropanol
Formula C9H20O4
CAS Number1 24800-44-0
EINECS Number 246-466-0
Molecular Weight 192.3
Boiling Point 760 mm Hg, °F 509.2
760 mm Hg, °C 265.1
Vapor Pressure mm Hg, 77°F (25°C) 0.002
Evaporation Rate (n-Butyl Acetate = 1) 2.14E-04

1 Chemical Abstract Service Number
*Note: These properties are laboratory results on pure compounds or are typical of the product. Typical properties should not be confused with, or regarded as, specifications.


Technical Literature

Safety Data Sheets
Sales Specifications
Technical Datasheets
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Tripropylene Glycol Regular Grade
English (93KB PDF) Español (113KB PDF) Português (106KB PDF) Français (93KB PDF) Italiano (28KB PDF) Deutsch (94KB PDF) 中文 (192KB PDF)

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DOW PuraGuard™: Your Security for Purity (7:38)