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Effect of uv absorbers containing singlet oxygen quenching groups on the photochemical stability of crystal violet lactone and related colours
Author(s) -
Oda Hironori
Publication year - 1988
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.280410405
Subject(s) - quenching (fluorescence) , crystal violet , singlet oxygen , photochemistry , chemistry , lactone , derivative (finance) , singlet state , nickel , oxygen , crystal structure , crystal (programming language) , fluorescence , organic chemistry , excited state , optics , medicine , physics , pathology , nuclear physics , financial economics , economics , programming language , computer science
The photofading behaviour of Crystal Violet Lactone was investigated in solution. The contribution of singlet oxygen to that fading was suggested. UV absorbers containing nickel sulphonate quenching groups were prepared and the protecting effect of these compounds towards the photofading of colour materials derived from colour formers was examined in solution and in solid state. It was proposed that nickel salts of 2,2′‐dihydroxy‐4,4′‐dimethoxybenzophenone‐5‐sulphonic acid and its derivative can be applied as effective stabilisers against the photofading of indicator dyes in pressure (or heat) sensitive recording systems.