微波照射下合成硫代硫酸钠  

The Synthesis of Sodium Thiosulfate under Radiation of Microwave

作　　者：金凤明[1] 孙晓娟[1] 郭登峰[1] 王刚[1] 

机构地区：[1]江苏石油化工学院化学工程系,江苏常州213016

出　　处：《江苏石油化工学院学报》2000年第4期5-7,共3页Journal of Jiangsu Institute of Petrochemical Technology

基　　金：江苏省自然科学基金资助项目!([1999]0 0 5 )

摘　　要：在密闭容器和微波照射下 ,以亚硫酸钠和硫黄为原料合成了硫代硫酸钠 ,对影响反应的因素如原料摩尔比、反应温度和时间等进行了试验和优化 ,研究了在亚硫酸钠共存下用碘量法测定硫代硫酸钠的方法 ,结果表明 ,在最佳条件下 ,硫代硫酸钠的产率可达 82 4% ,与传统密闭加热法相比 ,反应速率提高了 15倍 ,证实了在微波化学中非热效应的存在。The sodium thiosulfate was synthesized under radiation of microwave in a closed vessel using sodium sulfite and sulfur as reactants. The effects of such factors as reactant ratio, temperature and time etc. on the reaction were examined and optimized. The method for determination of sodium thiosulfate in the existence of sulfite by iodometry was studied. The results showed that the yield of sodium thiosulfate could reach 82 4 % under a optimum condition and the reaction rate by this synthetic method was fifteen times faster than that by conventional heating method. The experiment also provided the proof of the existence of non-thermal effect in microwave chemistry.

关 键 词：硫代硫酸钠 合成 微波照射 亚硫酸钠 硫黄 

分 类 号：O614.112[理学—无机化学]