间苯二酚与蔗糖反应的动力学研究

本文研究了间苯二酚与蔗糖在盐酸溶液中的反应机理，发现间苯二酚与蔗糖在盐酸溶液中反应，其实质是蔗糖先水解成果糖和葡萄糖，然后果糖在盐酸催化下与间苯二酚反应生成有色物质，实验结果表明，当问苯酚的浓度远大于果糖时，果糖与间苯二酚的反应为准一级反应，其表观活化能为127kJ／mol，推导了蔗糖与间苯二酚反应的动力学方程，提出间苯二酚法测定蔗糖理论依据，与实验结果吻合。

Study on the Kinetics of the Reaction between Sucroseand Resorcinol

According to the experiment results, the mechanism of the reaction between sucrose and resorcinol was discussed, and there is a conclusion that sucrose hydrolyzate-fructose can oxidize esorcinol to produce colored substance. The reaction between fructose and resorcinol is a asi-first-order reaction in hydrochloric acid medium, and the activation energy is 127kJ/mol. On the above basis, the kinetic equation was reduced, and it was proved that absorbency and sucrose concentration is in direct proportion by theory and by experiment results.