Glycerin monostearate (Glycerin monostearate, abbreviated as GMS), molecular weight 358, industrial products are usually yellowish wax-like solids or flakes, except for those containing monostearate In addition to esters, it also contains a small amount of diesters and triesters, which are tasteless, odorless and non-toxic. It is easy to emulsify with water and is a water-in-oil emulsifier. But because of its strong emulsifying properties, it can also be used as an oil-in-water emulsifier. It can be used as plasticizer, mold release agent, antistatic agent, lubricant, etc. in industry.
Production process: glycerin and hydrogenated oil are subjected to esterification reaction and filtered to remove impurities, and the reaction solution is neutralized with sodium hydroxide to obtain a crude product. The crude product is subjected to membrane and two-stage molecular distillation to remove glycerol, free fatty acids, diglycerides and triglycerides, respectively. Glycerides, and finally obtain high-purity monoglycerides.