51488-20-1

51488-20-1 - Names and Identifiers

Name	3-Chloro-4-methylphenylisocyanate
Synonyms	2-Chloro-5-isocyanatotoluene 2-Chloro-5-(isocyanato)toluene 4-Chloro-3-methylphenyl isocya 3-Chloro-4-methylphenylisocyanate 4-Chloro-3-methylphenyl isocyanate 1-Chloro-4-isocyanato-2-methylbenzene 2-chloro-4-isocyanato-1-methyl-benzen
CAS	51488-20-1

51488-20-1 - Physico-chemical Properties

Molecular Formula	C8H6ClNO
Molar Mass	167.59
Density	1.17
Boling Point	244℃
Flash Point	92℃
Water Solubility	Hydrolyzes with water.
Storage Condition	Room Temprature
Sensitive	Moisture Sensitive
Refractive Index	1.5580
Physical and Chemical Properties	The flash point of chemical properties is 93 ℃.
Use	Use pesticide intermediates.

51488-20-1 - Risk and Safety

Hazard Class

IRRITANT

51488-20-1 - Production method

3-chloro-4-methylaniline is obtained by phosgenation. Dissolve 3-chloro-4-methylaniline in toluene (or chlorobenzene) so that the concentration of 3-chloro-4-methylaniline in the solvent is 150-170g/L. Below 0 ℃, phosgene is introduced into the solution, and the amount of phosgene is about 2.5 times (molar ratio) of amine. Then slowly raise the temperature to 70-80 ℃ and react for 1-2h. Continue to raise the temperature to 100-105 ℃ for gas driving to obtain 3-chloro-4-toluene isocyanate solution.

Last Update：2024-04-10 22:29:15