Visual Titrimetric Determination of Phenidone and Hydroquinone in Photographic Developers
Phenidone* and hydroquinone are removed from the developer solutions and separated from each other by selective solvent extraction and selective oxidation. Each compound is analyzed with no detectable bias from the other. The procedure can be completed in less than 30 min using simple laboratory glassware. Sharp visual end points are obtained on fresh and used solutions with reagents commonly used in control laboratories. The same approach has been successfully applied to a hydroquinone-Phenidone B† monobath.
- Print ISSN
- 0361-4573
- Published
- 1965-08
- Content type
- Original Research
- DOI
- 10.5594/J06022
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