There is an oil character in the name of glycerin, and its appearance is a transparent and viscous liquid, so many people mistake it as an oil. So what is glycerin? Is it oil?
In fact, glycerol is an alcohol, its scientific name is glycerol, and alcohol (ethanol) belongs to the same category. Has strong water absorption, can be used as humectants, preservatives, emulsifiers, mostly used in the food industry, daily chemical industry ... in various industries.
Glycerol itself is simple in structure. The carbon atom is like a Lego toy with four jacks on it. Several small sticks can be connected to the jack to connect with each other. There are three carbon atoms inserted together, and one "hydroxyl" at the remaining hole of each carbon atom. The remaining vacancies are all glycerol using hydrogen atoms. There are many production processes. Some use plants as raw materials, and some use animal fats as raw materials. The best glycerol is produced from plant (palm fruit) as raw material.