we are producing edta series products,exporting edta,edta-2na,edta-4na,edta-ca10,edta-fe13,edta-mn13,edta-zn15,edta-cu15,edta-mg6,edta-2k and edta mixed salts
EDTA Na4. 4H2O Specification1. 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. It
also used in water treatment , SBR
rubber, color sensitization ect. By way
of additive, active agent , clarifier,
metalremover.