Glycerol, also known as propenyl alcohol, was a colorless, transparent, viscous liquid, which widely existed in nature as the form of glyceride, and have been used as important raw materials in chemical industry. 甘油,又称丙三醇,是一种无色透明粘稠的液体,主要以甘油酯的形式广泛存在于自然界中,作为一种重要的化工原料得到了广泛的应用。