Kinetic and Mechanistic Study of the Reduction of Chromium(VI) by Lactic Acid

Table 1

Effects of [DMSO] and ionic strength on 𝑘_obs at 298.15 K.

[DMSO]/mol⋅L^−1	0.050	0.10	0.20	0.30	0.40	0.50
10^3𝑘obs/s^−1	4.908	5.927	6.466	7.381	7.894	8.328
𝐼/mol⋅L^−1	0.60	0.80	1.0	1.1	1.2	—
10^3𝑘obs/s^−1	5.616	5.789	5.790	5.628	6.020	—

[Cr(VI)]=2.5×10⁻⁴mol⋅L⁻¹, [Lac]=0.50mol⋅L⁻¹, and [HClO₄]=0.50mol⋅L⁻¹.