Reduction of Cr(VI) in presence of some amino compounds.
The rate of reduction of Cr(VI) to Cr(III) in 0.05 M K2Cr2O7 has been studied and was found to be first order. The rate of reaction was measured in the absence of amino compounds and in the presence of o-nitroaniline, p-nitroaniline, m-toulidine, p-chloroaniline, and o-bromoaniline at four different temperatures. The rate of reaction was found to decrease with the addition of amines. Thermodynamic parameters DeltaG*, DeltaH*, and DeltaS* were calculated from the study.
El-Batouti
Mervette
M
Chemistry Department, Faculty of Science, Alexandria, Egypt. mervette_b@yahoo.com
D000814:Aniline Compounds / Q000737:chemistry*; D002857:Chromium / Q000737:chemistry*; D007700:Kinetics; D010084:Oxidation-Reduction; D013499:Surface Properties; D013696:Temperature; D013816:Thermodynamics; D013997:Time Factors
D000814:Aniline Compounds; D002857:Chromium