| Customization: | Available |
|---|---|
| CAS No.: | 57-55-6 |
| Formula: | 1, 2-Propanediol |
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Propylene glycol is an organic compound with the chemical formula C3H8O2, which is miscible with water, ethanol and various organic solvents. Under normal conditions, it is a colorless viscous liquid, almost tasteless, with a slightly sweet smell. Propylene glycol can be used as a raw material for unsaturated polyester resin, and can be used as a wetting agent in combination with glycerin or sorbitol in cosmetics, toothpaste and soap. In hair dyes, it is used as a moisture-conditioning and leveling agent, as an antifreeze agent, as well as in cellophane and plasticiz
| Item | Standard |
| Appearance | viscous, clear liquid |
| Propyleneglycol, min content | 99.7% |
| Density at 20°C, g/cm³ | 1.0381 |
| Boiling point of Propyleneglycol | 188.2°C at 760 mm Hg |
| Ignition temperature | 99°c |
| Water (by Karl-Fischer), max | 0.1% |
| Acidity (CH3COOH), max. | 0.005% |
| Hazen color of Propyleneglycol, max. | 15 Hazen units |
| Ash content, max. | 0.001% |
propylene glycol has good viscosity and hygroscopicity, and is widely used as hygroscopic agent, antifreeze agent, lubricant and solvent in the food and cosmetic industries. In the food industry, propylene glycol reacts with fatty acids to form propylene glycol fatty acid esters, which are mainly used as food emulsifiers; propylene glycol is an excellent solvent for seasonings and pigments. Due to its low toxicity, it is used as a solvent for spices and food coloring in the food industry. Because propylene glycol has good miscibility with various spices, it is also used as a solvent and softener for cosmetics. propylene glycol is also used as a tobacco moisturizer, antifungal agent, food processing equipment lubricant and solvent for food marking inks. Aqueous solutions of propylene glycol are effective antifreeze agents. It is also used as a tobacco wetting agent, antifungal agent, fruit ripening preservative, antifreeze and heat carrier, etc.
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