EDTA Na4.4H2O  Specification

1.      PRODUCT NAME               :       EDTA tetrasodium salt; Tetrasodium  

                                                      ethylenediaminetetraacetate Na4EDTA ;                                                      EDTANa4 ;

2.       CAS  NO.                           :      [13236-36-4]            

3.       EMPIRICAL FORMULA      :      C10H12N2O8Na4.4H2O

4.       MOL. WT.                            :      452.2        

5.       STRUCTURAL FORMULA   :                   

6.        Physical properties :       Tetrasodium ethylenediaminetetraacetate

                                                  tetrahydrate is a dry, white crystalline

                                                  powder and appears alkali in water, it is

                                                  soluble in water and insoluble in alcohols .

7.       DESCRIPTION              

APPEARANCE                    : Pure white crystalline powder.

                                                           Free Flowing.   

        WATER-INSOLUBLE         :      Not more than 0.1%

        CHLORIDES (Cl)                :      Not more than 0.005% (50 ppm).

        SUlPHATE (SO₄)%        :     Not more than0.1%

        IRON% (Fe)                  :     Not more than 0.001% (10ppm)

        CHELATE VALUE (CaCo₃/g)  :   200-215

       HEAVY METAL(LEAD)     :      Not more than 0.001%  (10 ppm)

        Torrefaction weightlessness   : Not more than0.01%

PH (1% w/v Solution)       :      10.5to 11.5  

PURITY (ASSAY)                :      Minimum 99.0%    

PACKING                             :      Packed in complex bag with plastic

                                              inner,25KG net per bag .stored in cool

                                              and warehouse , away from acids

                                              oxides, light &heater .sealed after use.

8.     Application                :            As one chelating agent ,it can be

                                             used in industrial cleaning, personal

                                             and household uses, Bleaching of pulp

                                             and textile, Micronutrients for

                                             agriculture, Photo processing, Printing  

                                             ink manufacturing , Food, Polymer

                                             processing and Metal plating etc ??/span>It

                                             also used in water treatment ,SBR

                                             rubber, color sensitization ect. By way

                                             of additive, active agent ,clarifier,

                                             metalremover.