| 摘要 |
PURPOSE:To obtain the titled solution capable of preventing satisfactorily sulfiding, without giving adverse effect to the photographic image by incorporating thiosulfuric acid ion and a specific compd. to the titled solution. CONSTITUTION:The titled solution contains >=1.0X10<-2>g/l thiosulfuric acid ion and at least one kind of compds shown by formulas I-III. In the formula I, R1-R5 are each hydrogen atom or alkyl group, etc., (M) is 0, 1, or 2, M is hydrogen atom or a cation. In the formula II, R6-R8 are each hydrogen atom or alkyl, cycloalkyl or aryl group, etc., (l) is 0 or 1, R9 and R10 are each the same meaning to that of R3. In the formula III, R11 and R12 are each alkyl group or hydrogen atom. |
