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Propylene Glycol is a colorless liquid with steady viscosity and good water absorption. It is nearly odorless, inflammable and minutely toxic.
Application: PG is the raw material for preparing unsaturated polyester resin, plasticizer, surface active agent, emulsifying agent and demulsifying agent. It can also be used as mould inhibitor, antiseptic for fruit, ice inhibitor and moisture preserving agent for tobacco.
| Items | Units | Pharmaceutical Grade | First Grade |
| Purity | % | ≥ 99.8% | ≥ 99.5% |
| Water | % | ≤ 0.2 | — — |
| Initial boiling point | º C | 182 | — — |
| Drying point | º C | 189 | — — |
| Distillation Range | º C | 184~189 | 183~190 |
| Color(Pt-Co) | — — | 10 | 15 |
| Ash | % | ≤ 0.01 | ≤ 0.01 |
| Heavy Metal ( Measured with Pb ) | ppm | 6 | — — |
| Arsenic | ppm | 5 | — — |
| Chloride s ( Measured with Cl- ) | ppm | 10 | — — |
| Sulphate s | ppm | 10 | — — |
| Density | ( 25º C ) g/cm 3 | 1.037~1.039 | |
| Appearance | Colorless, transparent and sticky liquid | ||
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Propylene Glyco