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Propylene glycol, also known as 1,2-propanediol, is a odorless, tasteless, colorless, viscous liquid at room temperature. USP, FCC, and NF monograms are all regulated under the United States Pharmacopeia. The USP and FCC designations signify that the chemical is suitable for pharmaceuticals and food use, whereas the NF contains monograms for excipients. Â
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- Polymer production
- Antifreeze
- Cosmetics
- Food additive
- Carrier solvent for flavors and pharmaceuticals
- Emulsifier
- Emollient
- Artificial smoke/fog
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Product Information
| CAS | 57-55-6 |
|---|---|
| Synonyms | 1,2-propanediol, Propane-1,2-diol, 1,2-Propylene glycol, 1,2-dihydroxypropane, 2-Hydroxypropanol, Methylethyl glycol, Methylethylene glycol, Isopropylene glycol, Monopropylene glycol |
| Assay | Min. 99.5% |
| PubChem ID | 1030 |
| Grade | USP/NF, FCC Grade |
| Color | Colorless |
| Physical form | Liquid |
| Appearance | Clear Liquid |
| Odor | Odorless |
| pH | 7 at 20 - 25 °C (68 - 77 °F) |
| Melting point | -60 - -20 °C (-76 - -4 °F) |
| Boiling Point | 184 - 188 °C (363 - 370 °F) |
| Vapor pressure | < 0.225 mmHg at 25 °C (77 °F) |
| Specific gravity | 1.035-1.037 at 25 °C |
| Density | 1.03 - 1.04 at 20 - 25 °C (68 - 77 °F) |
| Solubility | Soluble |
| Auto-ignition temperature | 371 - 400 °C |
| Molecular formula | C3H8O2 |
| Molecular weight | 76.1 |
| Acidity as Acetic Acid | Max 0.002 |
| Autoship Available | Yes |
| Chloride (Cl) | 0.007% |
| Diethylene Glycol | Max 0.008 |
| Flash Point | 103 °C (217 °F) |
| Heavy metals | 5 ppm |
| Iron (Fe) | Max 0.5 |
| KosherID | ZCF-HSLM |
| Refractive Index | 1.4310 - 1.4330 |
| Residual solvents | To pass test |
| Sulfate (SO4) | 0.006% |
| Suspended matter | To pass test |
| Vapor density | < 2.62 at 15 - 32 °C (59 - 90 °F) |
| Viscosity | 42.1 mm2/s @ 25 °C (77 °F) |
| Water | 0.20% |
