水中のトリクロロフルオロメタンおよびジクロロジフルオロメタンの光分解に関する研究(第1報)水中のトリクロロフルオロメタンおよびジクロロジフルオロメタンの光分解

概要

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The photolysis of trichlorofluoromethane (F-11) and dichlorodifluoromethane (F-12) in distilledor sea-water was investigated. The aqueous solutions of F-11 (245,446 ppt) and F-12 (467,678 ppt) were subjected to photolysis by a xenon lamp or under the sunlight and the amount of the remaining fluorocarbons was analyzed with ECD-GLC using the head space technique. When F-11 or F-12 in distilled-water was irradiated by a xenon lamp, 41% and 20% of them respectively were lost after 8h. The decomposition of the fluorocarbons in sea-water proceeded more efficiently, and approximately 63% of both F-11 and F-12 were lost by the irradiation with a xenon lamp. Under the sunlight, however, both fluorocarbons decomposed so slow that the loss of only 8% of F-11 in seawater was observed under the same experimental conditions for 4 weeks, whereas no significant decrease of F-11 and F-12 in distilled-water was observed during the experiment of 4 weeks.
公益社団法人日本薬学会の論文
1983-02-28