ETHYLENE DIAMINE TETRA ACETIC ACID DI SODIUM SALT

REFERENCE No: 135 – 11 – 002 - 00.

A. FORMULA : (CH2.N(CH2COOH).CH2COONa)2.2H2O                 F.Wt. : 372.24                                   

B. OTHER NAMES

    1. Ethylene diamine tetra acetic acid – disodium salt.
    2. Diamino ethane tetra acetic acid – disodium salt.
    3. Ethylene dinitrilo tetra acetic acid – disodium salt.

C. SPECIFICATIONS


1.

Appearance

White crystalline and free flowing powder free from lumps and external visible impurities.

2.

Clarity of 2% aqueous solution

Clear and colourless free from any suspended matter.

3.

pH of 5 % aqueous solution at 200C.

4.0 – 5.3.

4.

Assay                (Min)

98 %

5.

Practical test

Passes the test.

D. QUANTITY OF SAMPLE REQUIRED FOR TEST : 500 gms.

E. MODE OF PACKING

           Packed in double polythene bags each 200 gauge, heat sealed separately and kept in        thick cardboard box and properly sealed.  The whole thing is covered completely with      polythene cover and sealed at the top.  The final packing should withstand hazards in transit.  All packaging in direct contact with contents shall be photographically inert.