 BackResearch Article ScienceAsia 1 (1975): 114-119 |doi: 10.2306/scienceasia1513-1874.1975.01.114
POLAROGRAPIDC BEHA VIOR OF 1,10-PHENANTHROLINE IN AQUEOUS METHANOL SYSTEM
PROESPUN KANATHARANA and SITTICHAI LEEPIPATPIBOONSummary: The polarographic behavior of 1,10-phenanthroline was studied in ca. 67% methanol in the pH range of 3.20 to 6.80. A well-defined wave is resulted in the pH range of 6.00 to 6.50. However, the electrode process of 1,10-phenanthroline in this pH range is irreversible. In addition, the electrode process of 1,10-phenanthroline in the concentration range of 2.0 to 5.0 mM is proved to be diffusion controlled at pH 6.50. The dependence of the half wave potential and the wave height on the pH range of 3.20 to 6.80 for 1,10-phenanthroline are reported. The proton transported and electron transferred mechanism of 1,10-phenanthroline in ca. 67 % methanol are also discussed. Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok. Received 23 April 1975
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