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nature : H-O-C �N (is) isocyanate H-N = C = O (isocyanate) (A) and isocyanate two isocyanate. Free acid mixture of the two, never separated opening, but its esters are two forms. MDI is a volatile and corrosive liquids. There is a strong acid smell. Density 1.14. The boiling point of 23.6 ° C In aqueous solution showed strong acid. Unstable easily polymerization. Hydrolysis of producing ammonia and carbon dioxide. The role of alcohol and carbamate formation. (A) isocyanate R-O-C �N Yi polymerization, and susceptible to hydrolysis, it is difficult to be pure-state. Isocyanate R-N = O = C or C = O = N-R-N = C = O, are generally unhappy with the odor of liquid. Cyanurate isocyanate can be heated by the decomposition obtained.
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