| 摘要 |
Aqueous photographic fixer-developer contains (I) a thickening agent, and (II) a 2-mercaptotetrahydropyrimidine, a 3-mercaptotetrahydro-1,2,4-triazine, or a derivative of these compounds. Compound (II) pref. has the formula (II): (where R' is H or C1-3 alkyl, pref. methyl or ethyl; X is methylene or = N-R2; and R2 is C1-3 alkyl). |
