Propylene Glycol (C₃H₈O₂) is a clear, odorless liquid widely used in pharmaceuticals, food processing, and industrial applications. In the pharmaceutical industry, it serves as a solvent for oral, injectable, and topical medications, enhancing drug solubility and stability. In the food industry, it is used as a food additive and flavor carrier. It is also utilized in various industrial applications, including antifreeze formulations and as a moisture-retaining agent in cosmetics. Its safety profile and versatility make Propylene Glycol a valuable component in multiple sectors.
Test Parameter | Specification | Result |
Appearance | Clear, Colorless Liquid | Complies |
Purity | ≥ 99.5% | 99.8% |
Water Content | ≤ 0.5% | 0.3% |
pH (25°C) | 6.0 - 7.0 | 6.5 |
Heavy Metals | ≤ 10 ppm | < 5 ppm |
Arsenic | ≤ 1 ppm | < 0.5 ppm |
Lead | ≤ 1 ppm | < 0.5 ppm |