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前言为考查萃取设备“转盘塔”的效率, 选用了煤油—苯甲酸—CMC—水体系。CMC为羧甲基纤维素,苯甲酸为示踪物质。工程要求测定抽取样中煤油相、水相
Preface In order to test the efficiency of the “turret” extraction equipment, the kerosene-benzoic acid-CMC-water system was chosen. CMC is carboxymethyl cellulose, benzoic acid as tracer. Engineering requirements Determination of kerosene samples taken in the water phase