| 1,2-dihydroxypropane; methylethylene glycol; methyl glycol; (±)-1,2-propanediol; 1,2-propanediol; propane-1,2-diol; propylene glycol; α-propylene glycol; 1,2-propylene glycol | |
| Links: | 🌍 Wikipedia, 📖 PubMed |
| MeSH: | Solvents |
| CAS RN: | [57-55-6] |
| Formula: | C3H8O2; 76.10 g/mol |
| InChiKey: | DNIAPMSPPWPWGF-UHFFFAOYSA-N |
| SMILES: | OCC(O)C |
| Use: | antifreeze agent; chemical intermediate in manufacture of synthetic drying oil and treatment of vegetable oils; component of brake fluid compositions; humectant for magnesium foundry sands; inhibitor of mold growth and fermentation; lubricant in refrigerating machines; moistening agent for tobacco and lead pencils; plasticizer and hygroscopic agent for cellulose products; plasticizer in adhesives; processing of films, leather, paints, paper, and resins; solvent and spreading agent in dyes; thickener solvent, and spreading agent in inks |
| Toxicology (LD50): | 25 000 mg/Kg (dog, iv); 18 350 mg/Kg(guinea~pig, or); 18 900 mg/Kg(guinea~pig, or); 9 730 mg/Kg(mouse, ip); 5 000 mg/Kg(mouse, iv); 8 000 mg/Kg(mouse, iv); 2 200 mg/Kg(mouse, or); 23 900 mg/Kg(mouse, or); 10 500 mg/Kg(mouse, sc); 4 100 mg/Kg(rabbit, iv); 6 200 mg/Kg(rabbit, iv); 19 200 mg/Kg(rabbit, or); 13 400 mg/Kg(rat, im); 20 000 mg/Kg(rat, im); 13 000 mg/Kg(rat, ip); 21 000 mg/Kg(rat, or); 32 200 mg/Kg(rat, or); 24 900 mg/Kg(rat, sc); 28 000 mg/Kg(rat, sc) |
| Density: | 1.036 g/mL |
| Molar volume: | 73.4 mL/mol |
| Refractive index: | 1.431 |
| Molecular refractive power: | 19.01 mL/mol |
| Dielectric constant: | 32.00 |
| Dipole moment: | 2.27 D |
| Melting point: | -60 °C |
| Boiling point: | 187 °C |
| Vapour pressure: | 0 Torr |
| Antoine equation P(Torr) vs T(°C) | |
| Surface tension: | 72.00 dyn/cm |
| Viscosity: | 54.00 cP |
| Critical temperature: | 351 °C |
| Critical pressure: | 60.2 atm |
| Evaporation rate (butyl acetate): | 0.0 |
| Solubility in water: | 100 % w/w |
| Solubility of water: | 100 % w/w |
| Log10 partition water / activated carbon: | 1.43 |
| Log10 partition octanol / water: | -1.35 |
| Dimroth ET: | 54.1 |
| Hansen solubility parameter: | δd: 8.2 (cal/mL)^0.5 δp: 4.6 (cal/mL)^0.5 δh: 11.4 (cal/mL)^0.5 |
| Immiscible with: 2,6,8-trimethyl-4-nonanone, 2,6-dimethyl-4-heptanone, N,N-dipropylaniline, dibenzyl ether, dihexyl ether, ethyl (E)-3-phenylprop-2-enoate, ethyl phenylacetate, heptyl acetate | |
| Miscible with: (E)-3-phenyl-2-propenal, 1-amino-2-propanol, 1-phenylethan-1-amine, 1-tetradecanol, 2-(1-phenylethylamino)ethanol, 2-(2-hydroxyethyl-(1-phenylethyl)amino)ethanol, 2-ethoxyaniline, 2-ethylbutanoic acid, 2-methylphenol, 2-phenylethylamine, 3-heptanol, 3-methyl-2-butanone, 3-methylbutyl acetate, 4-methoxybenzaldehyde, 4-methylpentanoic acid, 5-ethyl-2-methylpyridine, N,N-diethylformamide, N-(2-aminoethyl)ethane-1,2-diamine, a-methylbenzyldimethylamine, dibutylamine, diisopropylamine, dipentylamine, ethanol, ethyl chloroacetate, hexanenitrile, pyridine, salicylaldehyde, tributyl phosphate, trichloromethane, triethylenetetramine | |
| Specific heat capacity: | 45.0 cal/molK |