Electrochemistry of bis(1,10-phenanthroline)copper(Ⅱ)-socdium dodecyl sulfate solution in the presence of MgCl2

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P-ISSN1225-0163
E-ISSN2288-8985
SCOPUS, ESCI, KCI

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P-ISSN 1225-0163
E-ISSN 2288-8985

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Vol.20, No.6

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Electrochemistry of bis(1,10-phenanthroline)copper(Ⅱ)-socdium dodecyl sulfate solution in the presence of MgCl2

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985

2007, v.20 no.6, pp.483-487

(2007). Electrochemistry of bis(1,10-phenanthroline)copper(Ⅱ)-socdium dodecyl sulfate solution in the presence of MgCl2. , 20(6), 483-487.

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Abstract

Electrochemistry of 1.0 mM bis(1,10-phenanthroline)copper(II) $(Cu(ph){_2}^{2+})$ in 100 mM NaCl solution including 27 mM $MgCl_2$ with and without sodium dodecyl sulfate (SDS) is studied. In the presence of SDS, $E_{pa}$ and $E_{1/2}$ of $Cu(ph){_2}^{2+}$ by adding $Mg^{2+}$ shifts to a positive direction compared to the SDS free. The intersection of two lines on ${\Delta}E_p$ vs -log[SDS] plot is determined as a critical micelle concentration (CMC). When $Mg^{2+}$ is added, it seems that the double layer became more compact. And the formation of micelles is retarded.