
Title: Kinetics and mechanism of the oxidation hyponitrous acid with chromium(VI) acid perchlorate solutions
Authors: Bhatnagar, Pankaj
Millal, R K
Gupta, Y K
Issue Date: Feb-1991
Publisher: NISCAIR-CSIR, India
Abstract: Oxidation of hyponitrous acid with chromate in acid solutions occurs in accord with reaction. 3H2N2O2 + 4Cr(VI) + 6H2O→ 6HNO2 + 4Cr(III)+ 12H+ with a rate law -d[Cr(VI)]/dt = where k1 and k2 are the rate constants for (H2CrO4 + H2N2O2) and (HCrO4- + H2N2O2,) reactions respectively and (1 / k2) is the first acid dissociation constant of H2CrO4 . The values of k1 (dm6mol-2 S-1) and k2(dm3mol-1 S-1I) have been found to be 1.5 and 0.072 respectively at 40°. The known trioxodinitrate(II) is not an intermediate of the reaction.
Page(s): 187-189
URI: http://nopr.niscair.res.in/handle/123456789/41788
Appears in Collections:IJC-A Vol.30A(02) [February 1991]

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