S P E C I F I C A T I O N S

N,N,N’,N’-Ethylenediaminetetraacetic Acid, Disodium Salt ACS

Synonyms:			EDTA, Dihydrate; N,N’-1,2-Ethanediylbis[N-							carboxymethyl]glycine, Disodium Salt, Dihydrate

CAS No:							6381-92-6

Chemical Formula:						C10H14N2O8Na2*2H2O
  
Formula Weight:						372.24

Appearance:							White solid

Assay								99.0-101.0%

pH of a 5% solution @25.0°C:				4.0-6.0

Insoluble matter:						0.005% maximum

Nitrilotriacetic acid [(HOCOCH2)2N]:			0.1% maximum

Heavy metals (as Pb):					0.005% maximum

Iron (Fe):							0.01% maximum

Effective Date: 08/20/15