Second, 2B oil: It from to nitre base by chlorine, organic pigment intermedia that reduce after reacting making toluene, itis used for making organic pigment and organic synthesis industry mainly.

• 2、2B油：它是由对硝基甲苯经氯化、还原反应后制得的有机颜料中间体，它主要用于制造有机颜料及有机合成工业。