The Radiolysis and Photolysis of Methanolic Solutions of Eosin. I. The γ-Radiolysis of Neutral and Alkaline Solutions
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概要
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The γ-radiolysis of eosin has been studied in deaerated neutral and alkaline methanolic solutions. Eosin is reduced principally with CH<SUB>2</SUB>OH radicals in dilute solutions. In neutral solutions, <I>G</I>(–eosin) is about 2 at the eosin concentration of 10<SUP>−5</SUP>M and increases as the concentration of eosin is increased. The final products are leuco-eosin and an unidentified substance which has an absorption peak at 455 nm. In an alkaline solution (10<SUP>−5</SUP>M), <I>G</I>(–eosin) is about 4 and the product is semireduced eosin, which is stable in the dark and which undergoes photo-debromination. The ESR spectrum of semireduced eosin has also been recorded. Comparative studies have also been made on uranin solutions.
- 公益社団法人 日本化学会の論文
著者
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Imamura Masashi
The Institute of Physical and Chemical Research
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Kimura Kazuie
The Institute of Physical and Chemical Research
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Miwa Takuji
The Institute of Physical and Chemical Research
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