Product Description

Product Name HEDP.Na4 Chemical name Tetra sodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid CAS No. 29329-71-3(x-Na), 3794-83-0(4-Na) MolecularFormr C2H4O7P2Na4 MolecularWeight 294 CommonName: Dequest 2016 Chemical Structure SPECIFICATIONS items index Appearance Clear,Colorless to paleyellowAqueousSolution White powder Active component (HEDP)% 22.0-24.0% as acid 56.0 min Active component (HEDP.Na4)% 32.0-34.0% as salt 79.9 min Total phosphoric acid (asPO43-) % 52.0-54.0 Fe ppm 20max 35.0 max Dry weight loss % 15 max density (20C)g/cm3 1.31min. -- PH(1%WaterSolutionn) 10.0-12.0 11.0-12.0 Color (APHA) 80max. Properties :Dequest 2016 is the sodium salt of Dequest 2010, HEDP.Na4 is an good scale inhibitor for calcium carbonate, it can be used in low pressure boiler water system, circulating water system, industrial and municipal cleaning water system and swimming pool. The solid HEDP.Na4 is white powder, soluble in water, easily deliquescence, suitable for use in winter and freezing districts. It is a kind of organophorphonic acid scale and corrosion inhibitor, can form stable complex with Fe, Cu and Zn ions, it can dissolve the oxides on metal surface, it has good scale and corrosion inhibition effect under 250C. HEDP.Na4 is widely used in circulating cool water system, medium and low pressure boiler, oil field water pipelines as scale and corrosion inhibitor in fields such as electric power, chemical industry, metallurgy, fertilizer, etc.. In light woven industry, HEDP.Na4 is used as detergent for metal and nonmetal. In dyeing industry, HEDP.Na4 is used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplating, HEDP.Na4 is used as chelating agent. APPLICATIONS: HEDPS(Na-4) is mainly used as a Scale & Corrosion Inhibitor, chelating (Sequestrating), deflocculating agent in Cooling and Boiler water treatment, Textile Dying, Detergents etc. Package and Storage: For liquid: Normally In 250kg net Plastic Drum, IBC drum can also be used as required. For solid: inner liner polyethylene(PE) bag, outer plastic woven bag, or confirmed by clients. Storage for ten months in room shady and dry place. Note:Also available dry powder form