Glycerol Glycerine

Glycerin, glycerol. A thick, syrupy, sweetish liquid used as a plasticiser, a mould lubricant and as a raw material for the manufacture of glyptal resins. 

A fat is a solid (at room temperature) triester of glycerin (glycerol) with fatty acids (long-chain carboxylic acids). An oil is similar to a fat however, an oil is a liquid at room temperature. The general structure of fats and oils appears in Figure 16-27. 

The primary use of anhydrous glycerin (Ophthalgan) is as an osmotic agent that is applied topically to reduce corneal edema. Orally administered glycerin (Glycerol, Osmoglyn) is used to reduce intraocular pressure and vitreous volume before ocular surgery. 

Glycerol (C,Hs(OH)s) is still another alcohol which you probably know better under the name of glycerin. Glycerol may be considered a product of propane (CSH() in which not one but three H atoms have been replaced by OH. 

Synonyms Glycerine, Glycerol, Glyceryl hydroxide, Glycl alcohol. 

Thau, P. Glycerin (glycerol) Current insights into the functional properties of a classic cosmetic raw material. J. Cosmet. Sci. 2002, 53 229-36. 

Figure 8.1. Formation of co-product glycerin (glycerol) during transesterification of vegetable oil.

Labeling Rapeseed Oil products that have added glycerin (glycerol) and that are fully hydrogenated should be labeled as Fully Hydrogenated and Superglycerinated Rapeseed Oil. The 1-Monoglyceride Content and Hydroxyl Value should be indicated as well. 

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