EDTA disodium salt dihydrate

 

Product name: EDTA disodium salt dihydrate
English name: English name: EDTA-2Na (EDTA Na2,EDTA Disodium Salt)
CAS NO.: 6381-92-6; 139-33-3
Molecular formula: C₁₀H₁₄N₂Na₂O₈·2H₂O
Molecular weight: 372.2
Structural formula:

 

 

Technical index

 

Item	Index(industrial grade)	Index(food and medical grade)
Appearance	white crystal powder	white crystal powder
purity %	≥99.0	≥99.5
chelating capacity(mgCaCO3/g, PH=11)	≥260	≥267
PH(50g/L 25℃)	4.0-5.0	4.0-5.0
sulfate(SO42-)%	≤0.1	≤0.01
heavy metal(as Pb)%	≤0.01	≤0.001
copper Cu %	≤0.025	≤0.0025
ferrum Fe%	≤0.01	≤0.001
chlorided (Cl)%	≤0.01	≤0.001
Nitrilotriacetic acid NTA%	--	≤0.1

 

Properties: It is white crystal powder; hardly soluble in organic solvents, for example, ethyl alcohol and diethyl ether.
Uses: EDTA-2Na is important complexing agent. It is used as fixing bath for bleaching, dyeing auxiliary agent, fiber treatment agent, cosmetics additive, blood anticoagulation, detergent, stabilizing agent, synthetic rubber, polymerization initiator and quantitative analysis agent of heavy metal.
Packaging: 25kg white woven bag lined with inner plastic bag or on demand; avoid unlight, moisture and fire in storage

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