... , d1.56, when heated below the melting point, succinic acid distillation, dehydration generates succinic anhydride. Melting point 185 ~ 187 , boiling point ... also one of the fermentation product of anaerobic metabolism of succinic acid is widely used in medicine, pesticide, dye, perfume, ... excess of 276000 t / a. In addition, the succinic acid is also can be used to synthesize bio-degradable polymers ...