Catalytic Synthesis of Dihexyl Sebacate with Sodium Bisulfate

Dihexyl sebacate was synthesized from sebacic acid and n-hexanol alcohol with Sodium bisulfate as catalyst.The effect of factors on esterification ratio was studied.The result shows that the best reaction condition was:bases on 0.05 mol sebacic acid,molar ratio of n-hexanol alcohol to sebacic acid was 2.6,mass of catalyst was 0.5 g,the taking water reagent was 10 mL,reaction time was 2 h.The esterification ratio is 98%.The experimental results showed that Sodium bisulfate had many advantages such as easy preparation,low cost,high activity,non-corrosive and pollution-free to the environment.It is an excellent catalyst for synthesis of Dihexyl sebacate.