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1,2-Dihydroxybenzene-3,5-disulfonic acid disodium salt monohydrate, is used as a colorimetric reagent for iron, manganese, titanium, molybdenum, and complexes of zirconium. It is used as a metal indicator. It is used for Chelate titration, colorimetry, fluorometry and masking reagent. It is used in chemical research, pharmaceutical research and as a pharmaceutical intermediate.
Kathryn E. Cole.; Ann M. Valentine. Spermidine and Spermine Catalyze the Formation of Nanostructured Titanium Oxide. Biomacromolecules.20078, (5), 1641-1647.
Reagent for Fe and Ti: Helv. Chim. Acta, 34, 528 (1951).
Gefahrenhinweise (EU): H315-H319-H335
Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Wear protective gloves. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.