MOCA 

MOCA is also represented by Moca, which is not a special symbol and represents different meanings in different places. As a chemical product, it represents 3,3 '- dichloro-4,4' - diamino diphenylmethane, also known as 4,4, - methylenebis (2-chloroaniline), P - (bi-o-chloroaniline) methane, commonly known as MOCA. The molecular formula is c13h12n2cl2.

Mocha is white to yellowish soft acicular crystal at room temperature. It can be dissolved in ethanol, * *, chlorobenzene, toluene, butanone and other organic solvents, but insoluble in water. Slightly hygroscopic, black when heated. It is easy to Resinification at high temperature, and has the danger of combustion and explosion. There is no specific toxicity data, its toxicity can refer to chlorobenzene and aniline, so it is a toxic chemical, which has irritation effect on eyes, skin and mucous membrane, and has carcinogenicity. It can be used as curing agent of casting polyurethane rubber, crosslinking agent of polyurethane coating and adhesive, and curing agent of epoxy resin. Liquid Mocha can be used as room temperature curing agent of polyurethane and spray polyurea curing agent.

physical property

[appearance] Mocha is white to yellowish soft acicular crystal at room temperature.

[melting point] (℃) 101-104

[density] D20 1.44

(melting at 170 ℃) 1.26

[solubility] it is soluble in ethanol, * *, chlorobenzene, toluene, butanone and other organic solvents, but insoluble in water.

[stability] it is stable at low temperature and turns black when heated.

Main uses

MOCA is a vulcanizing agent for cast polyurethane wear-resistant rubber. It is widely used in machinery industry, automobile and aircraft manufacturing industry, mining industry, sports facilities (such as plastic runway, plastic floor), and light industry manufacturing industry. It can also be used as crosslinking agent of polyurethane coatings and binders, curing agent of epoxy resin, and used for preparing ultra-high electrical resistance products.