Functional Roles
Industries Served
Physical Properties
melting_point
-76 u00b0F (NTP, 1992)
boiling_point
370.8 u00b0F at 760 mmHg (NTP, 1992)
density
1.04 at 68 u00b0F (USCG, 1999) - Denser than water; will sink
solubility
greater than or equal to 100 mg/mL at 70 u00b0F (NTP, 1992)
vapor_pressure
0.08 mmHg at 68 u00b0F ; 0.13 mmHg at 77 u00b0F (NTP, 1992)
flash_point
210 u00b0F (NTP, 1992)
GHS / SDS Safety
Danger
Irritant
Health Hazard
- H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]
- H336: May cause drowsiness or dizziness [Warning Specific target organ toxicity, single exposure; Narcotic effects]
- Not Classified
- Reported as not meeting GHS hazard criteria by 6762 of 6899 companies (only 2% companies provided GHS information). For more detailed information, please visit ECHA C&L website.
- H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]
Chemical Identity
| CAS Number | 57-55-6 |
| IUPAC Name | propane-1,2-diol |
| InChI Key | DNIAPMSPPWPWGF-UHFFFAOYSA-N |
| PubChem CID | 1030 |
| INCI Name | PROPYLENE GLYCOL |
Synonyms & Trade Names
Full Description
Propylene Glycol (CAS 57-55-6) is a glycol diol with the molecular formula C3H8O2 that functions as a humectant and solvent in industrial applications. This colorless liquid exhibits excellent water solubility and provides moisture retention and solvency properties across Agriculture, Beauty & Personal Care, Coatings & Construction, Food & Beverage, HI&I Cleaning, Mining, Oil & Gas, Pharmaceuticals, and Textiles industries. With a boiling point of 370.8°F and flash point of 210°F, it offers thermal stability for demanding processing conditions.