Accelerator M (2-mercaptobenzothiazole) is an important rubber vulcanization accelerator. The production process is still improving.

Accelerator M, chemical name 2-mercaptobenzothiazole, English abbreviation MBT, chemical formula C7H5NS2, appears as light yellow needle-like or flaky crystals, has an unpleasant odor, bitter taste, and is toxic. Accelerator M is insoluble in water and gasoline, slightly soluble in benzene, soluble in ethanol, ether, chloroform, acetone, glacial acetic acid, ethyl acetate, sodium hydroxide solution, sodium…