Some Measurement on the Quantum Yield Temperature Coefficient of the Uranyl Oxalate Actinometer at 254 Mu1,2,3
Creators:Norton, B. M.
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Citation:The Ohio Journal of Science. v66 n4 (July, 1966), 421-425
This paper reports, for solutions of 0.001 M uranyl sulfate and 0.005 M oxalic acid, a 10-degree temperature coefficient, up to 85°C (using a base temperature of 25°) of 1.02±0.01 at 254 m/x. Measurements in more dilute solutions show a decrease to approximately unity at 0.00025 M uranyl sulfate0.00125 M oxalic acid, with indication that it may become less than unity on further dilution. Quantum yields measured (using uranyl oxalate as standard), by students under a National Science Foundation "pilot" undergraduate participation project, on actinometers at 254 rn.fi, were for (1) malachite green leucocyanide, 0.9; (2) monochloroacetic acid, 0.3; and (3) potassium ferrioxalate, 1.24 moles per einstein.
Author Institution: Kenyon College, Gambier, Ohio
Rights:Reproduction of articles for non-commercial educational or research use granted without request if credit to The Ohio State University and The Ohio Academy of Science is given.
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