文章基本信息
- 标题：EDTA-Fe (III) を含む色素溶液の光退色反応 (II) ポーラログラフィーによる光退色反応機構の究明
- 本地全文：下载
- 作者：白井 靖男 ; 石川 和夫 ; 棚橋 晴行 等
- 期刊名称：日本写真学会誌
- 印刷版ISSN：0369-5662
- 电子版ISSN：1884-5932
- 出版年度：1977
- 卷号：40
- 期号：6
- 页码：322-327
- DOI：10.11454/photogrst1964.40.322
- 出版社：The Society of Photographic Science and Technolgy of Japan
- 摘要：
In the previous paper, it was reported that the dyes of 3-Methyl-1.-phenyl-4-( p -diethylaminophenyl) imino-2-pyrazoline-5-one and 2-Acetamido-N-( p -diethylaminophenyl) benzoquinone monoimine were easily faded by exposure to light in the solution containing EDTA-Fe (III). The light fading scheme recognized that EDTA-Fe (III) was reduced to EDTA-Fe (II) by light in the first step, then the latter reduced the dyes to form leuco dyes. In this paper, the scheme was elucidated by polarographic method. The dyes were bleached by electrolytic reduction on a cathode to form the leuco dyes which are identical with the light fading products. Some polarographic data show that two electrons and two protons take part in the fading reaction of the dyes. Accordingly, the light fading scheme can be expressed by the following equation. EDTA-Fe(III)→ hv EDTA-Fe(II) Dye+2EDTA-Fe (II) +2H+→H2Dye (leuco dye) +2EDTA-Fe (III)
