HEDP (1-Hydroxyethylidene-1, 1-Diphosphonic Acid)

HEDP (1-Hydroxyethylidene-1, 1-Diphosphonic Acid) CAS NO.: 2809-21-4 Chemical Name: Hydroxyethylidene-1, 1-Diphosphonic Acid Alias: HEDPA; 1-Hydroxyethylidene-bisphonic acid; Oxyethlidenediphosphonic Specification: Appearance Colorless transparent liquid Active content acid 58.0-62.0% Phosphorous acid,as PO3 2.0%max Phosphorice acid,PO4 0.7%max Chloride ,as Cl: 100ppm max Ph value(1% solution): 2.0%max Iron,as Fe: 10ppm max Density (20°C) : 1.39-1.49g/cm3 Application: A scale and synergistic corrosion inhibitor for iron rust and mineral scale from pipes of cooling circulation water units and boilers; Metal chelate agent for color fixing and bleaching in textile; Complexing agent for electron plate and scale cleaning agent for metals Package & Storage:250kg in a plastic drum and stored in cool and dry place.