1,6-Hexanediol
HDO, 1,6-Dihydroxyhexane, Hexamethylene Glycol.
- CAS
- 629-11-8
- EC
- 211-074-0
- Sectors
- Coatings, Adhesives, Sealants & Elastomers, Plastics & Polymers, Rubber & Elastomers
1,6-Hexanediol (CAS 629-11-8) is a Technical Grade linear diol with a hydroxyl group at each end of its six-carbon chain, supplied as white waxy flakes and used as a building block for specialty polymers, polyurethanes, polyesters and UV-curable monomers and adhesives. It imparts flexibility and excellent mechanical properties to polyurethanes and polyesters.
This chemical is valued for its high purity and low melting point, facilitating ease of use in resin manufacturing. It enhances the hydrolytic stability and chemical resistance of finished coatings and elastomers.
As a commercially vital monomer, it is used to produce UV-curable monomers and adhesives. It provides a unique balance of hardness and elasticity, making it ideal for high-performance industrial applications.
Typical Properties
| Molecular formula | C6H14O2 |
|---|---|
| Molecular weight | 118.17 g/mol |
| Appearance | white waxy flakes |
| Form | Waxy Flakes |
| Color | White |
| Melting point | 42.8 °C |
| Boiling point | 208 °C @ Press: 760 Torr |
| Density | 0.967 g/cm³ @ Temp: 0 °C |
| Water solubility | 500 g/L |
| Flash point | 215 °F |
| pH | 7.6 (900g/l, H2O, 20°C) |
| HS code | 29053980 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
1,6-Hexanediol
Applications
- Polyurethane Synthesis: Key diol component for producing flexible foams, elastomers, and high-durability coatings.
- Polyester Resins: Used as a glycol modifier to improve the weatherability and toughness of saturated polyesters.
- UV-Curable Coatings: Acts as a precursor for diacrylate monomers used in rapid-cure inks and wood coatings.
Safety & Risks
Generally considered Low Toxicity and non-irritating. Standard industrial hygiene with Safety Glasses and Gloves is recommended.
Packaging
Supplied in 200 kg Steel Drums or as molten material in ISO tanks.