单词oil of vitriol
na.: 硫酸
硫酸
Sulphonating reaction happened in glutinous , pitch shape foreign substance etc. in oil of vitriol and waste engine oil at this time.
这时，浓硫酸跟废机油中的胶质、沥青状杂质等发生磺化反应。
Studies on Methyl Esterification of Fatty Acid in Soybean Oil Deodorizer Distillate Catalyzed by Oil of Vitriol
浓硫酸催化脱臭馏出物脂肪酸甲酯化工艺研究