Cyanuric chloride CAS# 108-77-0

Melamine, also known as cyanuric chloride, is a white crystal with strong irritating chlorine odor, corrosive to skin, irritating to eyes and lacrimogenic. Melting point 145℃, boiling point 190℃, UVλmax 241nm (ethanol). Soluble in anhydrous ethanol, ethyl ether, chloroform, acetic acid and acrylonitrile, insoluble in cold water. The action of melamine with water is slow when cooled and hydrolyzed quickly to cyanuric acid (C3H3O3N3) and hydrochloric acid when heated, and the products are relatively soluble in water, so they can be separated using extraction methods. It is partially converted to cyanuric acid by the action of concentrated nitric acid and concentrated sulfuric acid at room temperature, and triglycerides of orthocyanuric acid by the action of sodium alcohol, which can also act with ammonia, amine and phenol. Preparation: It is obtained by reacting anhydrous hydrocyanic acid with dry chlorine gas in daylight (or in anhydrous ether), or by heating cyanuric acid with excess phosphorus pentachloride. Uses: Cyanuric acid is an important intermediate for the production of high-efficiency and low-toxicity homotriazole herbicides and insecticides, as well as an intermediate for the production of reactive dyes, and can be used as a raw material for synthetic resins, rubber, polymer antioxidants, cyanal resins, photographic sensitizers, fluorescent whitening agents, adhesives, and a variety of pharmaceutical drugs. In recent years, the consumption of cyanuric chloride in China has been growing rapidly, with an average annual growth rate of 32.2% from 1998 to 2004, and the demand for cyanuric chloride reached 50,000 tons in 2005. Since there are many subsequent products of melamine and the market demand is large, related enterprises and research institutions in various countries have been developing downstream products and applications of melamine. As a result, new products derived from melamine are emerging and the market demand will be further expanded. The related chemical reaction in which melamine is involved: from 2-amino-4-nitrophenol diazotization, coupled with H acid, treated with chromium and cobalt complex, condensed with melamine first, then condensed with ammonia to obtain reactive black K-BR. mainly used for printing on cotton and polyester/cotton fabric. Using melamine as raw material, it reacts with ethylamine in trichloroethylene solution at 20-30℃ to produce 2,4-dichloro-6-ethylamino-1,3,5-triazine, and then reacts with ammonia to produce 2-amino-4-chloro-6-ethylamino-triazine, and then reacts with 2-chloro-2-methylpropionitrile to produce selective herbicide gramoxone, which is used in corn field to prevent and control annual or perennial narrow-leaved or broad-leaved It is used to control annual or perennial narrow- or broad-leaved weeds in corn fields. It is used in the synthesis of fluorescent whitening agents, reactive dyes, pharmaceuticals, pesticides, etc. Melamine is an important intermediate for the production of high-efficiency and low-toxicity homotriazobenzene herbicides and insecticides, as well as an intermediate for the production of fluorescent whitening agents and reactive dyes for dyeing Chemicalbook colors of polyester and other synthetic fibers. It is also used in the production of synthetic resins, rubber, polymer antioxidants, explosives, fabric anti-shrinkage agents, surfactants, etc. Melamine is an important fine chemical product with a wide range of uses, it is an intermediate in the pesticide industry, is the raw material for the manufacture of reactive dyes, can be used as a variety of additives in the production of organic industry, Chemicalbook such as fluorescent whitening agent, textile anti-shrinking agent, surfactants, etc., is a rubber accelerator and one of the raw materials used in the manufacture of explosives for national defense, but also the pharmaceutical and pesticide industry for the synthesis of drugs It is also used as a raw material for the synthesis of drugs in the pharmaceutical and pesticide industry.