Ethylenediaminetetraacetic acid tetrasodium salt

 

Product name: Ethylenediaminetetraacetic acid tetrasodium salt
English name: EDTA-4Na·4H2O (Tetrasodium EDTA)
CAS NO.: 13254-36-4
Molecular formula: C₁₀H₁₄N₂Na4O₈·4H₂O
Molecular weight: 452.2
Structural formula:
 

 

Technical index

Item	Index
Appearance	white crystal powder
purity %	≥99.0
chelating capacity (mgCaCO3/gPH=11)	≥215
chloride (Cl)%	≤0.01
sulfate(SO42-)%	≤0.05
PH(1% aqueous solution)	10.5-11.5
heavy metal(as Pb)%	≤0.001
ferrum %	≤0.001

Properties: white crystal powder; easily soluble in water; lightly soluble in organic solvent, for example, ethyl alcohol
Uses: It is widely used chelation agent of metal ion. It is used for textile dyeing, water treatment, color photography, medical, daily chemical and papermaking industry. It is used as additive, active agent, water purifying agent, smoke agent for shielding of metal ion and active agent of butadiene styrene rubber.
Packaging: 25kg white woven bag or drum lined with plastic bag; should be preserved to avoid sunlight, moisture and fire;

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