Ethanolamine is mainly used as a plasticizer, vulcanizing agent, accelerator and foaming agent for synthetic resins and rubbers, as well as an intermediate for pesticides, medicines and dyes. It is also a raw material for synthetic detergents and emulsifiers for cosmetics. Textile industry as printing and dyeing whitening agent, antistatic agent, mothproofing agent, detergent. It can also be used as carbon dioxide absorbent, ink auxiliary and petroleum additive. Monoethanolamine is widely used as a purification liquid for extracting acidic components from various gases such as natural gas. Cyclization and neutralization of monoethanolamine hydrochloride can prepare piperazine hexahydrate. Monoethanolamine hydrochloride is chlorinated by thionyl chloride and then replaced by sodium thiosulfate to obtain β-aminoethyl thiosulfate. This is a dye intermediate used to produce polycondensed turquoise 13G. The reaction of monoethanolamine with carbon disulfide can produce thiothiazolyl, an intermediate useful in the rubber and pharmaceutical industries.