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Title: Kinetics and mechanism of reduction of ferricytochrome C by vanadate in phosphate buffers
Authors: Suja, N R
Sridevi, N
Yusuff, K K Mohammed
Issue Date: Sep-2004
Publisher: NISCAIR-CSIR, India
Abstract: The kinetics and mechanism of the reaction between ferricytochrome C and vanadate has been investigated spectrophotometrically employing [vanadate]˃˃ [ferricytochrome C]. The reaction exhibits first order each in [ferricytochrome C] and [vanadate ion]. The pseudo-first order rate constant decreases with an increase in ionic strength and increases with an increase in pH in the range 7 to 8. A suitable mechanism has been proposed on the basis of these results. The deprotonation constant for ferricytochrome C and the second order rate constant for the present reaction at 30oC have been determined from this study as (1.01 ±0.05)×10-7 mol dm-3 and 95.2±0.5 dm3 mol-1 s-1 respectively.
Page(s): 1890-1891
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.43A(09) [September 2004]

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