Propylene Glycol (Technical Grade)
Industrial (technical) grade 1,2-propanediol · clear, colourless, viscous liquid · CAS 57-55-6
DocumentsSpec sheet (PDF, 118 KB)Safety Data Sheet (PDF, 121 KB)
Overview
Propylene Glycol (Technical Grade) (CAS 57-55-6) is industrial-grade 1,2-propanediol, a clear, colourless, viscous liquid that mixes with water in all proportions. It is used as a coolant and heat-transfer fluid base, in unsaturated polyester resins, paints and coatings, industrial cleaners and as a general solvent and humectant. It is not intended for food, pharmaceutical or cosmetic use: for those we supply Propylene Glycol (Food Grade, USP). We pack it in 210 kg drums / bulk tankers and can arrange drum or tanker quantities for larger requirements. The full characteristics, applications and documents are below, or request a quote directly.
Specification Sheet — Characteristics
Download Specification Sheet (PDF)| Characteristics | Specifications |
|---|---|
| Propylene Glycol Content | 99.50% Min |
| Water Content | 0.10% Max |
| Colour (Pt-Co) | 5 Max |
| Refractive Index | 1.431 – 1.435 |
| Density (20°C) | 1.035 – 1.038 g/cm³ |
| Iron (Fe) | 0.2 ppm Max |
| Diethylene Glycol (DEG) | 0.0010% Max |
| Ethylene Glycol (EG) | 0.0010% Max |
| Appearance | Colourless transparent, no mechanical impurities |
| Standard | HG/T 5392-2018 (superior quality) |
Values above are from the manufacturer's certificate of analysis for a recent batch. Figures vary slightly batch to batch — a current certificate of analysis is supplied with every order.
Applications
- Coolants, antifreeze and heat-transfer fluids
- Unsaturated polyester resins, paints and coatings
- Industrial cleaners, solvents and humectant applications
Frequently Asked Questions
What is Propylene Glycol (Technical Grade)?
Propylene Glycol (Technical Grade) is industrial-grade 1,2-propanediol, CAS 57-55-6, supplied by Suraj Chemicals as a clear, colourless, viscous liquid. It falls under our Solvents & Organic Chemicals range. See the Specification Sheet table above for its characteristics.
What is Propylene Glycol used for?
Typical applications include: coolants, antifreeze and heat-transfer fluids; unsaturated polyester resins, paints and coatings; industrial cleaners, solvents and humectant applications.
What is the difference between technical grade and food grade propylene glycol?
Technical (industrial) grade is sold for industrial uses such as coolants, resins and coatings. Food grade (USP) is tested to food and pharmaceutical standards and is the one to use in food, medicine or cosmetics. Suraj Chemicals supplies both: tell us the end use and we will advise.
How should Propylene Glycol be stored and handled?
Store in sealed containers away from heat and strong oxidisers.
What packaging and pack sizes does Suraj Chemicals supply Propylene Glycol in?
210 kg drums / bulk tankers. Contact us if you need a different pack size, or a bulk/tanker quantity.
What is the shelf life of Propylene Glycol?
Typically 12 months from the date of manufacture when stored sealed. Propylene glycol is hygroscopic, so keep containers tightly closed and away from heat. Request the current batch's manufacturing date and a fresh certificate of analysis for orders where exact remaining shelf life matters.
Is Propylene Glycol hazardous to handle?
The Safety Data Sheet for Propylene Glycol does not classify it as hazardous under GHS. It is still an industrial chemical, so use normal good practice: avoid skin and eye contact, store as advised above, and download the Safety Data Sheet (SDS/MSDS) above for full handling and PPE details.
Is a Specification Sheet, TDS or MSDS available for Propylene Glycol?
Yes. A downloadable Specification Sheet (PDF) with full characteristics and a downloadable Safety Data Sheet (SDS/MSDS) for Propylene Glycol are available above.
Can I get a sample or discuss order quantity for Propylene Glycol?
Yes. Use the Request Price & Availability button or WhatsApp us with your required quantity, and our team will confirm pricing, minimum order quantity, sample availability and delivery timelines for Propylene Glycol.
Representative product image
CAS Number
57-55-6
Also Known As
1,2-Propanediol, PG
Chemical Formula
C3H8O2
Grade
Technical / Industrial Grade
Appearance
Clear, colourless, viscous, practically odourless liquid
Packaging
210 kg drums / bulk tankers
Storage & Handling
Store in sealed containers away from heat and strong oxidisers.
Shelf Life
Typically 12 months from the date of manufacture when stored sealed. Propylene glycol is hygroscopic, so keep containers tightly closed and away from heat. Request the current batch's manufacturing date and a fresh certificate of analysis for orders where exact remaining shelf life matters.