| Melting point |
-60 °C (lit.) |
| Boiling point |
187 °C (lit.) |
| Density |
1.036 g/mL at 25 °C (lit.) |
| vapor density |
2.62 (vs air) |
| vapor pressure |
0.08 mm Hg ( 20 °C) |
| refractive index |
n20/D 1.432(lit.) |
| FEMA |
2940 | PROPYLENE GLYCOL |
| Flash point |
225 °F |
| storage temp. |
Store at +5°C to +30°C. |
| solubility |
Chloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly) |
| pka |
14.49±0.20(Predicted) |
| form |
Viscous Liquid |
| color |
APHA: ≤10 |
| Specific Gravity |
1.038 (20/20℃)1.036～1.040 |
| PH |
6-8 (100g/l, H2O, 20℃) |
| Odor |
at 100.00 %. odorless very slight alcoholic |
| Odor Type |
odorless |
| biological source |
synthetic |
| optical activity |
-0.11° (C=1.00g/100ml, CHCL3) |
| explosive limit |
2.4-17.4%(V) |
| Water Solubility |
miscible |
| Thermal Conductivity |
0.199 W/(m·K) at 25 ℃ |
| Specific Heat Capacity |
Cp(liquid): 2.51 J/(g·K), at 25℃ |
| Sensitive |
Hygroscopic |
| Merck |
14,7855 |
| JECFA Number |
925 |
| BRN |
1340498 |
| Henry's Law Constant |
2.7×103 mol/(m3Pa) at 25℃, Burkholder et al. (2019) |
| Dielectric constant |
32.0 |
| Cosmetics Ingredients Functions |
HUMECTANT
SKIN CONDITIONING - HUMECTANT
SKIN CONDITIONING - MISCELLANEOUS
FRAGRANCE
SOLVENT
VISCOSITY CONTROLLING |
| InChI |
1S/C3H8O2/c1-3(5)2-4/h3-5H,2H2,1H3 |
| InChIKey |
DNIAPMSPPWPWGF-UHFFFAOYSA-N |
| SMILES |
CC(O)CO |
| LogP |
-0.92 |
| Surface tension |
35.44mN/m at 298.15K |
| CAS DataBase Reference |
57-55-6(CAS DataBase Reference) |
| NIST Chemistry Reference |
Propylene glycol(57-55-6) |
| EPA Substance Registry System |
Propylene glycol (57-55-6) |
