A benzene solution of di-methyl oxalate, as an oil phase, and calcium chloride solution, as an aqueous phase, were mixed together at the same volume under both unstirred and stirred conditions.

• 以二甲基草酸于苯液中之溶液为油相，而以氯化钙溶液为水相，以相同体积比例混合，于无搅拌及有搅拌条件下操作。