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Citation: BIN L Haluk, ATALAY Tevfik. Study of Kinetics of Complexation Reaction of Co²⁺ with 2-benzoylpyridine-4-phenyl-3-thiosemicarbazone and Kinetic-spectrophotometric Determination of Cobalt[J]. Acta Physico-Chimica Sinica, ;2006, 22(12): 1484-1488. doi: 10.1016/S1872-1508(06)60076-4 shu

Study of Kinetics of Complexation Reaction of Co²⁺ with 2-benzoylpyridine-4-phenyl-3-thiosemicarbazone and Kinetic-spectrophotometric Determination of Cobalt

1.
(Faculty of Education, Department of Chemistry, Selcuk University, Konya 42090, Turkey)

Received Date: 18 May 2006
Available Online: 6 December 2006

Kinetics of complexation reaction of Co2+ with 2-benzoylpyridine-4-phenyl-3-thiosemicarbazone (BPPT) was spectrophotometrically examined at 421 nm. The ligand that is developed for a simple kinetic-spectrophotometric determination of Co2+ is based on 1:2 complex formation between Co2+ and BPPT. The complexation reaction was carried out in ethanol-water medium at 25 ℃. Kinetic and activation parameters of the complexation reaction were calculated, and the rate equation and the reaction mechanism were proposed. The calibration graph is linear in the concentration range of 0.10～2.91 mg•L−1 for the tangent method. The species that caused interference were investigated.
- Cobalt;Thiosemicarbazone;Kinetic study;Kinetic-spectrophotometric determination
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沈阳化工大学材料科学与工程学院沈阳 110142

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Study of Kinetics of Complexation Reaction of Co2+ with 2-benzoylpyridine-4-phenyl-3-thiosemicarbazone and Kinetic-spectrophotometric Determination of Cobalt

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通讯作者: 陈斌, bchen63@163.com

Study of Kinetics of Complexation Reaction of Co²⁺ with 2-benzoylpyridine-4-phenyl-3-thiosemicarbazone and Kinetic-spectrophotometric Determination of Cobalt