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软肥皂在水中,由于脂肪酸钾的解离而有K~+和R—COO~-两种离子产生: C_(17)H_(35)COOK(?)电离C_(17)H_(35)COO~-+K~+R-COO~-发生水解,使溶液呈碱性: R-COO~-+H_2O(?)RCOOH+OH~- 此时,铝容器内部表面的氧化膜(Al_2O_3)被碱
Soft soap in water, due to the dissociation of fatty acid K + and R-COO ~ - two kinds of ions: C 17 H 35 COOK ionization C 17 H 35 COO ~ - + K ~ + R-COO ~ - hydrolysis occurs, the solution was alkaline: R-COO ~ - + H_2O (?) RCOOH + OH ~ - At this time, the aluminum oxide inside the container surface (Al_2O_3)