摘要
研究了以氯乙酸和三甲胺为原料,在常压下反应合成三甲基氨基乙酸的工艺条件。其最佳工艺条件为:以水作溶剂,氯乙酸和三甲胺的摩尔比为1∶2,反应时间6 h,反应温度40℃。以30%无水氯化钙和80%的饱和硫酸铵水溶液控制一定的相对湿度,采用空调和隔水式培养箱控制实验环境温度、湿度,其平均吸湿率和保湿率分别为36.57%和1.84%
The process condition of synthesis three-methyl glycin from chloroacetic acid and three-methyl amine under normal pressure was studied.The optimum conditions are as follows with water as solvent,the molar ratio of chloroacetic acid to trimethylamine is 1∶2,reaction time is 4 h,reaction temperature is 40 ℃.The relative humidity is controlled by 30% anhydrous calcium chloride and 80% saturated ammonium sulfate solution,the test ambient temperature,humidity are controlled by air-conditioning and water-barrier cultivation cabinet,the average rate of moisture absorption and moisture are 36.57% and 84%,respectively.
出处
《应用化工》
CAS
CSCD
2010年第9期1345-1347,共3页
Applied Chemical Industry
基金
长安大学科技创新基础研究支持计划项目(CHD2009JC143)
关键词
三甲基氨基乙酸
合成
吸湿率和保湿率
three-methyl glycin
synthesis
rate of moisture absorption and moisture
