Spent Glycerine Solvent, 97%

Spent Glycerine is a by-product generated primarily during the production of biodiesel, fatty acids, and soap manufacturing processes where triglycerides from vegetable oils or animal fats undergo transesterification or saponification. Unlike refined glycerine, which is highly purified, spent glycerine is a crude, unrefined mixture that contains not only glycerol but also impurities such as methanol, soaps, salts, water, and organic residues.