It is understood that: Glycerin (also known as glycerin) is a colorless, odorless, sweet-tasting organic substance with a clear and viscous liquid appearance. It is miscible with water, alcohols, amines and phenols in any proportion, and the aqueous solution is neutral. Glycerin is a polyol moisturizer. The hydroxyl groups in the molecular structure can form hydrogen bonds with water molecules, which plays a good role in absorbing and locking water. Glycerin has a wide range of uses. Currently, it has more than 1,700 uses. It is used in both food and industry.
There are four types of products called glycerol currently on the market, namely natural glycerin, fermented glycerin, synthetic glycerin and compound glycerin:
Among them Compound glycerin is a substitute for glycerol (glycerol). It is generally made from high-nitrogen organic compounds and magnesium-containing inorganic salts. Therefore, it can only replace glycerol in certain fields and cannot be used under high temperature (over 120°C) or alkaline conditions. The remaining three types are glycerin produced by different processes.
Natural glycerin is a by-product of stearic acid production (further production of soap) using natural oils as raw materials;
Fermented glycerin is made from starch or molasses as raw materials and fermented into crude product Glycerin is produced through distillation, rectification and other processes, but its purity and other indicators are still far behind those of natural glycerin and synthetic glycerin;
Synthetic glycerin is glycerin produced by chemical synthesis and is industrialized All use propylene as raw material.
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