The effects of ultrasonic irradiation on the chemical reaction of hydroquinone.
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概要
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Oxidation of hydroquinone to quinone under ultrasonic irradiation has been reported in acidic solutions (Sharma and Prasad). In neutral aqueous solution (pH=6-7), however, we found that this type of reaction does not take place, but another type ultra sonicreaction, production of 2, 5-dihydroxyquinone takes place instead. We inves tigatedthis latter type of reaction and obtained the following results:(i) ultrasonic irradiation produced hydrogen peroxide in solution, which led to the formation of 2, 5-dihydroxyquinone, and the concentration of H<SUB>2</SUB>O<SUB>2</SUB> formed increased with the ultrasonic level;(ii) the formation reaction of 2, 5-dihydroxyquinone was accelerated by the ultrasonic local thermal action;(iii) the observed reaction was also accelerated by the vigorous ultrasonic stirring.
- 一般社団法人 日本音響学会の論文
一般社団法人 日本音響学会 | 論文
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