EDTA-4Na.4H2O (Ethylenediaminetetraacetic acidTetrasodium salt ) FeatureEDTA-4Na is a white crystal powder with four crystal water, slightly soluble in organic solvents like alcohol, easily soluble in water. When heated, it easily loses crystal waterMolecular Formula:C10H14N2Na4O8·4H2O CAS NO.: 13254-36-4.Molecular Weight: M=416Specification:Appearance : White Crystal Powder Assay≥%: 99.0 Chelating Value (Ph=11) mgCaCO3/g ≥: 215 Ph(1% Water Solution) :10.5-11.5 Fe%≤ :0.001 Clarification pass Heavy Metal (Pb)%≤: 0.002 Storage 25: Long TimePacking: 25kg/bag