Reaction of Chromium(III) with 3,4-Dihydroxybenzoic Acid: Kinetics and Mechanism in Weak Acidic Aqueous Solutions

Table 1

Values of 𝑘_1(obs) and 𝑘₂(𝑘₂≪𝑘₃) at various temperatures.

Temperature (K)	Rate constants
	𝑘1(obs)×10^2(M^−1s^−1)	𝑘2×10^4(s^−1)
279	1.10	—
286	2.52	—
290	3.15	—
295	3.74	—
303	—	0.91
309	—	1.35
313	—	1.54
318	—	2.11
323	—	3.11