To asses the therapeutic efficacy of ascorbic acid in preventing toxic and mutagenic effects of Cr(VI) to Cr(III) the Kinetics and mechanism of reduction of hexavalent chromium by ascorbate has been studied. The reduction was done under pseudo first order condition by taking an excess of ascorbate over hexavalent chromium species. The rise of absorbance of Cr(III) was monitored at 578 nm. The observed rate constants then determined showed a dependence on both ascorbate concentration and pH as well. The bearing of these observations on the mechanism of reduction of hexavalent chromium is discussed in order to explain this.
MUTI UR RAHMAN ,S ARIF KAZMI ,
You can use below filter to find your desired issue