Shandong XinTai Water Treatment Co,.Ltd.

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                                                    Organic Phosphate Salts

                                                    Tetra sodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP•Na4)

                                                      CAS No. 29329-71-3 (x-Na),  3794-83-0 (4-Na)    Dequest: 2016/2016DG

                                                      Molecular Formula: C2H4O7P2Na                    Molecular weight: 294

                                                      Structural Formula:

                                                      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 250.

                                                      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:

                                                      items

                                                      index

                                                      Appearance

                                                      White powder

                                                      Colorless to light yellow transparent liquid

                                                      Active component (HEDP) % 

                                                      56.0 min

                                                      20.3-21.7

                                                      Active component )HEDP•Na4) %

                                                      79.9 min

                                                      29.0-31.0

                                                      Total phosphoric acid (as PO43-) %

                                                      52.0-54.0

                                                      18.4-20.4

                                                      Fe ppm

                                                      35.0 max

                                                      20 max

                                                      Dry weight loss, %

                                                      15 max

                                                      --

                                                      Density (20℃) g/cm3

                                                      --

                                                      1.26-1.36

                                                      PH

                                                      11.0-12.0 (1% water solution)

                                                      10.0-12.0 (as it)

                                                       

                                                      Packing and Storage:

                                                      For liquid: Normally 250kg net in drum, IBC, or per customers. For solid: inner liner polyethylene (PE) bag, outer plastic woven bag, or confirmed by clients. Storage for ten months in shady room and dry places.

                                                      Safety Protection:

                                                      Weak acidity, Avoid contact with eye and skin, once contacted, flush with water immediately. 

                                                      Update : 2015/2/2 10:28:25 Hits : 2340

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