5-(4-Dimethylaminobenzylidene)rhodanine is a silver-specific dye that is used to quantitate the autoradiographic deposition of silver onto X-ray film in a colorimetric assay. 5-(4-Dimethylaminobenzylidene)rhodanine is used as an indicator in the titration of cyanide solution with silver nitrate solution.
As 0.03% solution in acetone for detection of silver, mercury, copper, gold, platinum and palladium ions.
Applied for the detection of Ag, Au, Cu, Hg, Pd, Pt, alkaloids, antipyrin, indican, sulfonamide, urobilinogen. Reagent for the determination of silver, palladium, mercury and gold. Also used in the photometric determination of auto radiograms.