Nipagin esters were synthesized by the esterification of dodecyl and octadecyl alcohol with p -hydroxybenzoic acid in the presence of vitamin C.
以维生素C为催化剂， 对羟基苯甲酸和十六醇及十八醇为原料合成尼泊金十六酯与尼泊金十八酯。
Then-octyl gallate was prepared by esterification of alcohol and gallic acid in catalysis system of dodecyl benzene sulfonic acid.
以十二烷基苯磺酸为催化剂，酸醇直接酯化合成没食子酸正辛酯。
And the results were anhydrous sodium sulfite 0.2%, sodium lauryl sulfate 7%, fatty alcohol polyoxyethylene lauryl ether sulfate sodium 12% and dodecyl betaine 4%.
优选结果为0.2%无水亚硫酸钠、7%十二烷基硫酸钠、12%脂肪醇聚氧乙烯醚硫酸钠和4%十二烷基甜菜碱。
Study on the preparation of methylacrylic dodecyl alcohol esters in the catalysis of cationic exchange resin;
对化学转化法制备磁性阳离子交换树脂的主要影响因素进行了较详细的实验探讨。
Study on the preparation of methylacrylic dodecyl alcohol esters in the catalysis of cationic exchange resin;
对化学转化法制备磁性阳离子交换树脂的主要影响因素进行了较详细的实验探讨。
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