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

Ethylenediaminetetraacetic Acid Dipotassium Salt Dihydrate

Synonyms:				EDTA Dipotassium Salt Dihydrate;
					(Ethylenedinitrilo)tetraacetic acid dipotassium salt,
					dihydrate

CAS No:				25102-12-9

Chemical Formula:			C10H14K2N2O8*2H2O
  
Formula Weight:			404.45

Appearance:				White powder with characteristic odor.

Assay (Anhydrous):		99.0 – 101.5%

Melting Point:			255 – 280 Deg. C

pH of a 5% Solution:		4.0 – 6.0

Insoluble matter:			0.005% max.

Chloride (Cl):			50 ppm max.

Sodium (Na):			1500 ppm max.

Lead (Pb):				50 ppm max.

Iron (Fe):				10 ppm max.

Solubility:				Clear to very slightly hazy colorless to faint 
					yellow solution at 32 g plus 200 ml of 3M 
					Potassium Hydroxide.

Effective Date: 06/01/19