Propylene Glycol
Propylene glycol, also called propane-1,2-diol, is an organic compound with the chemical formula C3H8O2. It is a viscous colourless liquid which is nearly odourless but possesses a faintly sweet taste. Chemically it is classed as a diol and is miscible with a broad range of solvents, including water, acetone, and chloroform.
It is produced on a large scale and is primarily used in the production of polymers but also sees use in food processing as the E-number E1520. Its use in the "e-liquid" used in electronic cigarettes has brought it to the attention of the general public.
The compound is sometimes called α-propylene glycol to distinguish it from the isomer propane-1,3-diol (β-propylene glycol).
| Parameter | Value | ||
|---|---|---|---|
| Molecular Formula | C3H8O2 | ||
| Molecular Weight | 76.10 | ||
| CAS Number | [57-55-6] | ||
| Description | Clear colourless viscous liquid | ||
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| Industry | Application |
|---|---|
| Food | As nontoxic anti-freeze in breweries and dairy establishments |
| Pharmaceuticals | As solvent for bulk drug industries and Pharmaceuticals Formulations |
| Polymer | raw Material in epoxy resin Manufacture |
| Process and Manufacturing | Substitute for ethylene glycol and glycerol In Manufacture of PPG |
