Polarographic Studies on the Kinetics of the Electrode Reaction of 4-Benzoyl-1,5 Diphenyl Pyrazole-3-Carboxylic Acid

M. VERİRŞEN

Makale detayları

Polarographic Studies on the Kinetics of the Electrode Reaction of 4-Benzoyl-1,5 Diphenyl Pyrazole-3-Carboxylic Acid

Yazarlar:

M. VERİRŞEN

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 1998 Vol.22 Issue 4, pp.335-340

Belge Tipi:

Makale

Yayın Tarihi:

3/1998

Belge Dili:

Türkçe

Document ID (Org No.):

2000730531

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

Özet:

 

The polarographic behavior of 4-Benzoyl-1,5 diphenyl pyrazole-3- Carboxylic acid (BDPPCA) in aqueous ethanol solution (76 % v/v) at 25oC was studied as a function of pH using Mcl buffer solution. One well-defined wave was obtained in the pH range of 3.3-5.4. This wave, corresponding to two electron reduction processes, was irreversible and diffusion controlled. However, in the pH range of 5.4-7.4 a single reversible and diffusion-controlled wave involving two electrons resulted. The kinetic parameters (na, kof,h) were calculated by Koutecky's method. A tentative mechanism was put forward for the reduction process of depolarizer. Furthermore, the effects of different supporting electrolytes on the kinetics of the irreversible electrode reaction of BDPPCA were investigated.

 

The polarographic behavior of 4-Benzoyl-1,5 diphenyl pyrazole-3- Carboxylic acid (BDPPCA) in aqueous ethanol solution (76 % v/v) at 25oC was studied as a function of pH using Mcl buffer solution. One well-defined wave was obtained in the pH range of 3.3-5.4. This wave, corresponding to two electron reduction processes, was irreversible and diffusion controlled. However, in the pH range of 5.4-7.4 a single reversible and diffusion-controlled wave involving two electrons resulted. The kinetic parameters (na, kof,h) were calculated by Koutecky's method. A tentative mechanism was put forward for the reduction process of depolarizer. Furthermore, the effects of different supporting electrolytes on the kinetics of the irreversible electrode reaction of BDPPCA were investigated.

Makale detayları

Polarographic Studies on the Kinetics of the Electrode Reaction of 4-Benzoyl-1,5 Diphenyl Pyrazole-3-Carboxylic Acid

Yazarlar: M. VERİRŞEN

Yayıncı: TUBITAK

Dergi: Turkish Journal of Chemistry 1998 Vol.22 Issue 4, pp.335-340

Belge Tipi: Makale

Yayın Tarihi: 3/1998

Belge Dili: Türkçe

Document ID (Org No.): 2000730531

Sıklık: İki Aylık

eISSN: 1303-6130

pISSN: 1300-0527

Sayı

Yazarlar:

M. VERİRŞEN

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 1998 Vol.22 Issue 4, pp.335-340

Belge Tipi:

Makale

Yayın Tarihi:

3/1998

Belge Dili:

Türkçe

Document ID (Org No.):

2000730531

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527