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HEDP.Na4 (Tetra sodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid) CAS No. 29329-71-3 (x-Na), 3794-83-0 (4-Na) (through rita at thwater dot com to contact with me directly for the item) Molecular Formula: C2H4O7P2Na4 Molecular weight: 294 Properties of HEDP.Na4: Dequest 2016 is the sodium salt of Dequest 2010, HEDP.Na4 is an good scale inhibitor for calcium carbonate, HEDP.Na4 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. HEDP.Na4 is a kind of organophorphonic acid scale and corrosion inhibitor, can form stable complex with Fe, Cu and Zn ions, HEDP.Na4 can dissolve the oxides on metal surface, HEDP.Na4 has good scale and corrosion inhibition effect under 250 centigrade. 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. Specification of HEDP.Na4: Appearance of HEDP.Na4 : White powder / Colorless to light yellow transparent liquid Active component of HEDP.Na4 (HEDP): 56.0 percent min / 20.3-21.7 percent min Active component of HEDP.Na4 (HEDP.Na4): 79.9 percent min / 29.0-31.0 percent min Total phosphoric acid of HEDP.Na4 (as PO43-) : 52.0-54.0 / 18.4-20.4 Fe of HEDP.Na4 : 35.0 ppm max / 20 ppm max Dry weight loss of HEDP.Na4: 15 percent max / -- Density of HEDP.Na4 (20 centigrade): -- / 1.26-1.36 g/cm3 PH of HEDP.Na4: 11.0-12.0 (1 percent water solution) / 10.0-12.0 (as it) |
