Catalytic synthesis of dibutyl sebacate with sodium bisulfate as catalyst

By using sodium bisulfate as the catalyst,sebacic acid and n butyl alcohol reacted to form dibutyl sebacate.The optimum conditions were as follows:basing on 0.05mol sebacic acid,molar ratio of n butanol to sebacic acid was 3,cyclohexane was 20ml,mass of catalyst was 2.0g,reaction time was 30min.The yield of dibutyl sebacate was up to 95 62%.Experimental results showed that the catalyst had many advantages,such as easy preparation,low cost and high activity.It was also non corrosive and pollution free to the environment.