Table 2. Apparent Rate Constants (k’_a and k″_a) and Protonation Constants (K) Values^a.

	temperature (°C)
constants	27	35	40
104k’a, dm9 mol–3 s–1	3.10	3.32	3.54
103 k″a, dm6 mol–2 s–1	2.85	3.80	4.39
10 K, dm3 mol–1	1.11	0.95	0.81

^a[CrO₄^2–] = 7 × 10^–4 and I = 4.0 mol dm^–3 at different temperatures. Experimental errors (±3%).