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Arancio xilenolo sale tetrasodico, Supelco®

Fornitore: Merck

Descrizione: Arancio xilenolo sale tetrasodico, Supelco®

Arancio xilenolo sale tetrasodico in ACS Reagent grade water, Sigma-Aldrich®

Fornitore: SIGMA-ALDRICH MICROSCOPY

Descrizione: Xylenol orange tetrasodium salt is a fluorochrome acid dye with complexing and chelating properties that make it useful as an indicator in the spectrophotometric detection and assay of metal ions such as calcium, cadmium, bismuth, zinc, lead, and mercury. Its tetrasodium salt especially is used as an indicator in metal titrations. It changes color from yellow to red between pH 6.4 to 10.4. It has six potentially anionic substituents, one being sulfonate, and is anionic under staining conditions and during most laboratory applications.