What is a Propylene glycol (C₃H₈O₂)?

Propylene glycol (C₃H₈O₂) is an organic compound belonging to the glycol family. It is a colorless, odorless liquid at room temperature and is highly water-soluble. It is chemically stable and hygroscopic, meaning it absorbs moisture, making it useful as a humectant, solvent, and preservative in a wide range of industries. The primary applications of propylene glycol include use in food, pharmaceuticals, cosmetics, and the chemical industry. In cosmetics and skincare products, it acts as a humectant, helping to retain moisture in the skin. It is also used in haircare products for its moisturizing properties. In the food industry, propylene glycol is used as a food additive, functioning as a sweetener, emulsifier, and preservative.

In pharmaceuticals, propylene glycol is used as a solvent or wetting agent in the formulation of liquid medications and injectables. Additionally, it is used in antifreeze, de-icing solutions, food preservatives, and even pet products such as water additives and snacks.

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