Ethylene diamine tetraacetic acid tetrasodium salt (ETDA-4NA)

English name：Ethylene diamine tetraacetic acid tetrasodium salt (ETDA-4NA) Molecular Fomula: C10H12N2O8Na4•4H2O Molecular weight: M=452.23 CAS NO.: 13254-36-4 Properties: White crystal powder soluble in water, and chelation with a variety of metal ion. Quality Index: (Q/24SJK02-2009 Quality standard) Content(as 452.2)% ≥99.0 Chloride(Cl)% ≤ 0.01 % Sulfate(SO4)% ≤ 0.05 % Metal chelate(Pb)% ≤ 0.001 % Iron(Fe）% ≤ 0.001 % Chelate: mgCaCO3/g 215 min pH Value(10g/L,25℃) 10.5-11.5 Appearance white crystal powder Packing: 25KG/bag , or according to the customers’ demand Storage: Stored in the dry and ventilated inside storeroom, prevent direct sunlight, slightly pile and put down。