SPECIFICATIONS

SODIUM TARTRATE DIHYDRATE ACS

Synonyms:				2,3-Dihydroxybutanedioic Acid, Disodium Salt Dihydrate
    
CAS No:				6106-24-7

Formula:				C4H4Na2O6 * 2H2O

F.W.:					230.08

Description:				White powder or crystalline powder

Assay:					99.0 – 101.0 %

Loss on drying:			15.61% - 15.71%

pH of a 5% solution:		7.0 - 9.0 at 25 deg. C

Insoluble matter:			0.005 % maximum

Chloride (Cl):			5 ppm maximum

Phosphate (PO4):			5 ppm maximum

Sulfate (SO4)	:			0.005 % maximum

Ammonium (NH4):			0.003% maximum

Heavy metals (Pb):			5 ppm maximum

Iron (Fe):				0.01% maximum

Calcium (Ca):				0.01 % maximum

Effective: 10/20/15