イオン交換膜電極法とその応用 : 第2報イオン性界面活性剤のCMCの測定

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Observation of membrane potential is excellent method for detecting small change of ion-concentration in solution. In this paper, C.M.C. of synthetic detergent-anions were determined by the method. (1) C.M.C of sodium-salt of cetil-sulfate was measured to 6.3〜6.6×10^<-4>Mol/l. (2) C.M.C of sodium-salt of stearil-sulfate was measured to 1.7〜2.0×10^<-4>Mol/l. (3) In the stearil-sulfate solution, another tranditional state of the micell was observed at 3.5〜3.6×10^<-4>Mol/l, slitly above the C.M.C.
仙台大学の論文