What is Di Propylene Glycol?
Di Propylene Glycol (DPG) is a mixture of three isomeric chemical compounds: 4-oxa-2,6-heptanediol, 2-(2-hydroxypropoxy)-1-propanol, and 2-(2-hydroxypropoxy)-2-propanol. It is produced as a co-product during the manufacture of Propylene Glycol (PG) from propylene oxide. DPG is a colourless, odourless, viscous liquid with a higher molecular weight (~134 g/mol), higher boiling point, and lower vapour pressure compared to Propylene Glycol.
Polychem Industries supplies Di Propylene Glycol in Industrial Grade and Fragrance Grade to cosmetic formulators, fragrance manufacturers, personal care companies, and industrial chemical users across India and internationally. DPG's most notable application is as a fragrance carrier and diluent — its low vapour pressure, excellent solubility for fragrance materials, and mild odour make it the preferred carrier in perfumery and personal care.
Available Grades
| Grade | Purity | Standard | Key Characteristic | Applications |
|---|---|---|---|---|
| Fragrance Grade | 99.5%+ | Fragrance / Cosmetic | Ultra-low odour, high purity | Perfumes, cosmetics, personal care, fragrance dilution |
| Industrial Grade | 99%+ | Industrial | Industrial purity | Plasticisers, resins, hydraulic fluids, coatings |
Applications & Uses
Fragrance & Perfumery
The primary application for Fragrance Grade DPG. Used as a carrier and diluent for fragrance oils, essential oils, and aroma chemicals in perfumes, home fragrances, and air fresheners. Its extremely low odour ensures it does not interfere with the fragrance profile.
Cosmetics & Personal Care
Used in lotions, creams, body sprays, and personal care products as a solvent, humectant, and fragrance carrier. Its mild skin feel, low irritation potential, and good spreadability make it ideal for cosmetic formulations.
Candles & Home Fragrance
Widely used in scented candles, reed diffusers, and home fragrance products as a fragrance carrier. Its low vapour pressure provides a controlled, sustained release of fragrance rather than a rapid initial burst.
Plasticisers & Resins
Industrial Grade DPG is used as a plasticiser in resins, as a reactive intermediate in polyurethane and polyester production, and as a component in specialty coating formulations.
Hydraulic Fluids
Used as a component in water-based hydraulic fluids and industrial lubricants. Its high boiling point, low volatility, and water solubility make it suitable for industrial fluid applications.
Chemical Intermediate
Used as a raw material in the production of specialty polyols, alkyd resins, and other chemical intermediates in the chemical manufacturing industry.
Technical Specifications
Di Propylene Glycol — Key Properties
Why Source Di Propylene Glycol from Polychem Industries?
- Fragrance Grade and Industrial Grade available to meet all application needs
- Fragrance Grade has ultra-low odour — will not interfere with fragrance formulations
- Certificate of Analysis and MSDS available on request
- Also supply Propylene Glycol — full glycol product range from one supplier
- Reliable bulk supply for cosmetic and fragrance manufacturers
- Export documentation experience for international shipments
