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Propylene Glycol (Industrial Grade)
CAS NO.:57-55-6
Chemical name: Propylene Glycol; 1,2-propanediol
Molecular formula: C3H8O2
Relative molecular weight: 76.09
Relative density（20/20℃）g/cm3:1.035～1.039
Distillation range＞95%，（vol.）℃: 184～190
Appearance: Colorless transparent or pale yellow liquid with special taste
Index of Propylene Glycol/1,2-Propanediol(CAS 57-55-6) Quality
| Item | Standard | Result | |
| Appearance | Colorless, viscous clear hygroscopic liquid | Colorless, viscous clear hygroscopic liquid | |
| Purity | 99.00% min. | 99.50% | |
| Moisture | 0.2% max. | 0.06% | |
| Specific gravity (20°C ) (g/ cm3) | 1.035-1.038 | 1.037 | |
| Index of refraction (nD20) | 1.428-1.435 | 1.433 | |
| Alkalinity (as OH-) | 0.04 mmol/100g max | 0.01 mmol/100g | |
| Color APHA | 5 max | 5 | |
| Acidity, ml | 0.02 (m/m) | 0.004 | |
paint, coating and plastic industries.
In cosmetics, can be used as a wetting agent and emollient, because of good viscosity and hygroscopicity.In daily chemical is an important solventIt used as an antifreeze, also an important material for Humectant.
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