THE CATALYTIC EFFECT OF SOME ORGANIC ACIDS ON THE OXIDATION OF URANIUM(IV) BY THALLIUM(III) IN PERCHLORIC ACID
The reaction between uranium (IV) and thallium (III) in the presence of various organic acids was studied. Dibasic saturated acids studied were oxalic acid, malonic acid, and succinic acid. Oxalic acid and succinic were found to in- : hibit the reaction. Oxalic acid has only a slight effect on the system compared to succinic acid. Malonic acid has no effect on the rate of the system. The unsaturated dibasic acids, fumaric acid and maleic acid, were investigated along with the hydroxy dibasic acids, malic and tartaric. Under the appropriate conditions these acids all catalyze the reaction. At low concentrations of fumaric or maleic acid, the reaction between uranium (IV) and thallium (III) is catalyzed, but as the concentration of the organic acid is increased, the effect is to inhibit the reaction. Tartaric acid appears to exhibit the same behavior, and although the evidence is scanty malic acid is believed to catalyze the reaction. Pantial rate laws were determined. The reaction is first order in uranium (IV) and thallium (III), and in the accelerated area the order of the maleic acid is 0.07, while in the inhibited area the maleic acid has an order of - 0.84. The hydrogen ion was found to have an order of -- 1.17 in the inhibited area. (auth)
- Research Organization:
- Michigan State Univ., East Lansing
- NSA Number:
- NSA-16-028858
- OSTI ID:
- 4807639
- Journal Information:
- Dissertation Abstr., Journal Name: Dissertation Abstr. Vol. Vol: 23
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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