Glycerol; also called glycerine or glycerin, is a simple polyol compound. It is a colorless, odorless, viscous liquid that is sweet-tasting and non-toxic. The glycerol backbone is found in all lipids known as triglycerides. It is widely used in the food industry as a sweetener and humectant and in pharmaceutical formulations.Glycerol is generally obtained from plant and animal sources where it occurs as triglycerides. Triglycerides are esters of glycerol with long-chain carboxylic acids. The hydrolysis, saponification, or transesterification of these triglycerides produces glycerol as well as the fatty acid derivative.Typical plant sources include soybeans or palm. Animal-derived tallow is another source.
Super Crude 50%+ Glycerin
Crude 80%+ Glycerin
USP 99.7 Refined Glycerin
The biodiesel industry has created a glut of glycerin in the United States since the industry first became commercially viable in 2006. Many new uses and trade avenues for the material have been invented over the years. Biodiesel plants whom don’t have the proper glycerin refining systems in their process, will make a very crude glycerin. This material can run in the 40-70% range. This material typically has little to no value as it holds in its remaining percentages hazardous methanol, water, salts and fats.
Crude Glycerine is an impure form of Glycerine and is primarily made as a by-product. Recently the reinvention of biodiesel has created much of the crude glycerine as it is a by-product from the manufacture of biodiesel. This supply has created market disruptions as it typically has many impurities in it including methanol, water and salts. A saleable grade of crude glycerine is generally at least 80% glycerine with less than 1% methanol in it. Crude Glycerine that has lower levels of glycerine or higher levels of methanol often has little or no value.
Glycerin USP and foodgrade glycerin meet the requirements mandated by U.S.Food & Drug Administration (FDA) regulations for use infoods, drugs, medical devices and certain other productsrequiring ingredients of the highest purity. Most of the glycerin marketed today is manufactured tomeet the stringent requirements of the United StatesPharmacopeia (USP) and the Food Chemicals Codex(FCC). However, technical grades of glycerin that are notcertified as USP or FCC are available.