CAS No.:77-99-6
2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol
Synonyms: 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol;TMP;
Molecular formula: C6H14O3
CAS No: 77-99-6
White flaky crystal. Density: 1.116g/ml Melting point: 56-60°C Boiling point: 295.7°C (760 mmHg) Flash point: 172°C Solubility: Easily soluble in water, low carbon alcohol, glycerin, N,N-dimethylformamide, some Soluble in acetone, ethyl acetate, slightly soluble in carbon tetrachloride, ether and chloroform, insoluble in aliphatic hydrocarbons, aromatic hydrocarbons and chlorinated hydrocarbons. Its hygroscopicity is about 50 times that of glycerin.
Application
PU industry used in the production of polyester and polyurethane foams, it is also used in the manufacture of alkyd coatings, synthetic lubricants, plasticizers, surfactants, fiber processing agents, rosin esters and explosives. It is also directly used as a textile auxiliary agent and heat stabilizer of PVC resin. It can be used in alkyd resin to improve the firmness, color tone, weather resistance, chemical resistance and sealing performance of the resin. Polyvinyl alcohol and polyoxymethylene resin can be dissolved in polymer substances. Therefore, it can be used as a plasticizer for these resins.
Specification
| Items | Unit | Lower Limit | Upper Limit |
| Appearance | Colorless and transparent liquid | ||
| Purity | % | 99.7 | |
| Moisture | % | 0.1 | |
| Free alcohol (butyl alcohol) | % | 0.3 | |
| Evaporation residue | mg/100ml | 5 | |
| Color | Hazen | 10 | |
| Free acid as acetic acid | % | 0.005 | |
| Boiling range: Initial boiling point | ℃ | 78.5 | |
| Dry point | ℃ | 81 | |
| Density 20℃ | g/cm3 | 0.804 | 0.806 |