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Fine chemicals
EDTA 4Na
Chemical Name: EDTA tetrasodium salt; EDTA 4Na
 
Product Description  Tetrasodium ethylenediaminetetraacetate
Supply Form        White crystalline Powder
CAS No.            64-02-8  (CAS 13235-36-4)
Molecular Formula   C10H12N2O8Na4
Molecular Weight    380.17
 
 
Product Characteristics
Property
 Value
Unit
Standard
Purity (assay)
99
%
Q/24SJK03-2006
PH Value
10.5-11.5
 
Q/24SJK03-2006
Chelate Value(CaCO3/g)
210-215
 
Q/24SJK03-2006
Heavy Metal(Pb)
0.002
%
Q/24SJK03-2006
Chlorides(Cl)%
0.01
%
Q/24SJK03-2006
Sulphate(SO4)%
0.05
%
Q/24SJK03-2006
Iron(Fe)%
0.001
%
Q/24SJK03-2006
 
Packaging
25kg/bag, or requirement as customer
Storage Life/Conditions
10 months
Characteristics
EDTA 4Na is mainly used to sequester metal irons in aqueous solution. In the textile industry,it prevents metal iron impurities from modifying colours of dyed products.In the pulp and paper industry, EDTA 4Na inhibits the ability of metal irons,especially Mn from catalyzing the disproportionation of hydrogen peroxide, which is used inchlorine-free bleaching.In a similar manner ,EDTA 4Na is added to some food as a preservative or stabilizer to prevent catalytic oxidative decoloration,which is catalyzed by metal irons.
CAS :13235-36-4
Application: Cosmetics; Personal care(soap, shampoo); Oil industry(anti-caking agent); Food additives
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