專技 - 藥劑學(包括生物藥劑學)題庫下載題庫

甘油  Glycerin is a non-toxic fluid made from plant oils in its natural form. It can also be made synthetically through processing propylene. Chemically speaking, the alcoholic compound is made of three -OH groups. It is a clear, colorless, sweet tasting, syrupy liquid. Glycerin is commonly used as a humectant (meaning it preserves moisture), solvent, and preservative. Glycerin is also an emollient, which means that it has the quality to soothe and soften the skin, which makes this extremely popular for soap making.

丙二醇  Propylene glycol is a synthetic fluid that derives from propylene oxi...

甘油  Glycerin is a non-toxic fluid made from plant oils in its natural form. It can also be made synthetically through processing propylene. Chemically speaking, the alcoholic compound is made of three -OH groups. It is a clear, colorless, sweet tasting, syrupy liquid. Glycerin is commonly used as a humectant (meaning it preserves moisture), solvent, and preservative. Glycerin is also an emollient, which means that it has the quality to soothe and soften the skin, which makes this extremely popular for soap making.

丙二醇  Propylene glycol is a synthetic fluid that derives from propylene oxide. Chemically speaking, it is composed of two -OH groups. Like glycerin, it is a clear, colorless, and sweet tasting chemical. It is also most commonly used as a humectant, solvent, and a preservative. Due to its more toxic behavior than glycerin, the amount of propylene glycol in a product is typically a small amount. It is recognized as a generally safe chemical for human use, according to the FDA. Trace amounts can be found in many products, as it does not react on its own and does not affect other ingredients. It has a very low freezing point, so it makes a good component for antifreeze.