Kinetics and Mechanism of the Reaction between Chromium(III) and 3,4-Dihydroxy-Phenyl-Propenoic Acid (Caffeic Acid) in Weak Acidic Aqueous Solutions
Figure 6
Spectra of a typical caffeic acid/Cr(III) mixture at various times after mixing; [caffeic acid]0 =
0.015 M, [Cr(III)]0= 0.025 M, = 298 K, 1 cm cell. (a) 0 seconds,
(b) 1800 seconds, (c) 3600 seconds, (d) 7200 seconds, (e) 14400 seconds.
