CAS NO.: 139-33-3.

MOLECULAR WEIGHT: 372.2.

MOLECULAR FORMULA: Na₂EDTA·2H₂O.

DESCRIPTION: WHITE CRYSTALLINE POWDER.

SOLUBILITY: SOLUBLE IN WATER.

pH OF (5% SOLUTION): 4.3-4.7.

AQUEOUS SOLUTION OR DISPERSION ACTIVE INGREDIENTS: EDTA DISODIUM SALT.

ASSAY: 99.5% MIN AS DISODIUM SALT.

CHELATION VALUE AS mg. OF CaCO₃:

270.0.

WATER INSOLUBLE MATTER: 0.003% MAX.

CHLORIDE (Cl): 0.004% MAX.

NITRILOTRIACETATE (NTA): 0.05% MAX.

SULPHATE (SO₄): 0.02% MAX.

CALCIUM (Ca): 0.002% MAX.

COPPER (Cu): 0.0001% MAX.

IRON (Fe): 0.0005% MAX.

HEAVY METALS (Pb): 0.0005% MAX.

MAGNESIUM (Mg): 0.001% MAX.

POTASSIUM (K): 0.01% MAX.

APPLICATION: ANALYTICAL REAGENT.