1 parts of?4-Methylbenzene-1,3-diamine??and 2 parts of??mixture of sulfur of 210 ~ 250 ℃ calcination 15 hours, product dissolved in Sodium sulfide and Sodium hydroxide, then add salt, in six hours heated to 240 ℃, again in the 250 ℃ heating for more than 4 hours, make the moisture evaporation (BIOS 1155, – 39)
Properties and Applications
brown. Red brown powder. Insoluble in water, soluble in Sodium sulfide solution for brown, slightly soluble in concentrated sulfuric acid.
