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FeCl3催化合成尼泊金丁酯及其酯化率测定方法
A Study on FeCl3 Catalized Synthesis of Butylparaben and the Determination of Its Esterification Rate
【摘要】 本文以对羟基苯甲酸和正丁醇为原料,在135-140℃下使用三氯化铁催化合成尼泊金丁酯,利用熔点、红外光谱与元素分析对目标产物的组成和结构进行表征。由于三氯化铁催化合成尼泊金丁酯时会影响现有酯化率的测定,本文使用K4[Fe(CN)6]消除三氯化铁对酯化率测定的影响,建立了精确测定酯化率的分析方法。
【Abstract】 Butylparaben is synthesized through the reaction of 4-hydroxybenzoic acid and n-butanol at 135-140℃ with FeCl3·6H2O used as the catalyst.The composition and structure of the target product are characterized by means of the melting point,IR and elemental analysis.However,the use of catalyst FeCl3·6H2O would exert some adverse effect on the present analytic method for determining the esterification rate.Hence,by adding K4[Fe(CN)6 to remove the effect of FeCl3,a new analytic method for accurate determination of the esterification rate is devised.
【基金】 内蒙古工业大学科学研究重点项目(ZD201106)
- 【文献出处】 内蒙古工业大学学报(自然科学版) ,Journal of Inner Mongolia University of Technology(Natural Science Edition) , 编辑部邮箱 ,2012年01期
- 【分类号】TQ245.24
- 【被引频次】6
- 【下载频次】379