EDTA-4Na 40% solution

 

Product name: Ethylenediaminetetraacetic acid tetrasodium salt
Molecular formula: C₁₀H₁₂N₂O₈ Na₄
Molecular weight: 380.20

 

Technical index

Item	industrial grade	superior grade
Appearance	light yellow clear liquid	light yellow or clear liquid
purity(in 380.2) %	39.0--40.0	39.0--40.0
chelating capacity(mgCaCO3/g)	102--110	102--110
chloride(Cl)%	≤ 0.01	≤ 0.01
sulfate(SO42-) %	≤ 0.05	≤ 0.05
heavy metal(as Pb) %	≤ 0.001	≤ 0.001
ferrum%	≤ 0.001	≤ 0.001
PH(25℃)	11.0-12.0	10.5-11.5
Nitrilotriacetic acid %	≤2.0	≤0.2

Uses: Mainly applied in acrylic fibers industry to cancel metal interference to improve colour and luster of textiles; also applied in liquid detergent to improve washing effect
Packaging: 250kg plastic drum or tons drum or on demand
Storage: should be preserved in cool and dry place; seperate with acidic material and strong oxidant

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