... -Diphosphonic acid Common trade name:Dequest 2016 Molecular weight:294 Chemical name:Sodium Salt of 1-Hydroxyethylidene-1,1-Diphosphonic acidCommon ... & Corrosion Inhibitor, chelating (Sequestrating), deflocculating agent in Cooling and Boiler water treatment, Textile Dying, Detergents etc.Specifications: AppearanceClear, Colorless to pale yellow ...