cosmetic grade cas 57-55-6 propylene glycol
Products Description
Propylene glycol is a synthetic liquid substance that absorbs water. Propylene glycol is also used to make polyester compounds, and as a base for deicing solutions. Propylene glycol is used by the chemical, food, and pharmaceutical industries as an antifreeze when leakage might lead to contact with food. The Food and Drug Administration (FDA) has classified propylene glycol as an additive that is “generally recognized as safe” for use in food. It is used to absorb extra water and maintain moisture in certain medicines, cosmetics, or food products. It is a solvent for food colors and flavors, and in the paint and plastics industries. Propylene glycol is also used to create artificial smoke or fog used in fire-fighting training and in theatrical productions. Other names for propylene glycol are 1,2-dihydroxypropane, 1,2-propanediol, methyl glycol, and trimethyl glycol. Propylene glycol is clear, colorless, slightly syrupy liquid at room temperature. It may exist in air in the vapor form, although propylene glycol must be heated or briskly shaken to produce a vapor. Propylene glycol is practically odorless and tasteless.
Basic Analysis
| Items | Specifications |
| Appearance | Clear liquid |
| MPG Assay,wt.% | Min. 99.8 |
| Sp. Gr (25/25℃) | 1.035-1.037 |
| Color, APHA | Max.10 |
| Water ,ppm | Max.700 |
| Iron, ppm | Max.0.1 |
| Chlorides,wt,ppm | Max.1.0 |
| Sulfate ,wt,ppm | Max.10 |
| Heavy metals, ppm | Max.5 |
Application
Food Industry:
- Food Additive: Propylene glycol is used as a food additive (E1520) and is recognized as safe by the FDA. It acts as a humectant (moisture-retaining agent), solvent, and flavor carrier in various food products.
- Preservative: It helps preserve the moisture content in food products.
Pharmaceuticals:
- Solvent: It is commonly used as a solvent for oral, injectable, and topical medications.
- Humectant: In creams and ointments, it helps retain moisture and improve texture.
Cosmetics and Personal Care Products:
- Moisturizer: Propylene glycol is widely used in skincare products, shampoos, and lotions for its moisturizing properties.
- Emulsifier: It helps stabilize emulsions, allowing oil and water to mix effectively.
Industrial Applications:
- Antifreeze: It is used in antifreeze and coolant formulations due to its low freezing point.
- De-icing Agent: Commonly used in de-icing solutions for aircraft and roads.
- Manufacturing: Utilized in the production of plastics, resins, and other industrial products.
Vaping Products:
- Propylene glycol is often used as a base in e-liquids for vaping, where it helps to create vapor.
