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Polarographic Determination of Zirconium and Hafnium with EDTA
Author(s) -
Pan Kuan,
Sun PengJoung,
Wong WenKuei
Publication year - 1961
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.196100031
Subject(s) - chemistry , potentiometric titration , zirconium , polarography , hafnium , cadmium , amalgam (chemistry) , complexometric titration , inorganic chemistry , electrolyte , supporting electrolyte , titration , molar ratio , nuclear chemistry , electrode , catalysis , organic chemistry , biochemistry
Abstract Cadmium EDTA complexes in the acetate buffer has been used as an indicator electrolyte in the determination of zirconium and hafnium as EDTA complexes at p H 4.2. The polarographic determination of zirconium and hafnium could be made with solutions of concentrations as low as 10 −6 molar or 0.1 p.p.m . The results were compared with those obtained by potentiometric titration of the free cadmium ion in the concentration range 10 −3 to 10 −4 molar using cadmium amalgam as an indicator electrode.