EDTA

 

SYNONYM: ETHYLENE DIAMINE TETRAACETIC ACID

 

FORMULA: C10H16N2O8

 

M. W.: 292.2

 

CAS NO.: 60-00-4

 

GRADE: FOOD GRADE

 

DESCRIPTION: IT IS A KIND OF WHITE CRYSTAL POWDER, ITS MELTING POINT IS 240℃ AND DISSOLVING DEGREE IN WATER IS 0.5G/L(25℃). IT IS INSOLUBLE IN COMMON ORGANIC SOLVENTS.AND SOLUBLE IN BOILING WATER 160 TIMES AS MUCH, AND SOLUBLE IN ALKALI SOLVENTS LIKE SODIUM HYDROXIDE, AT 150℃, IT SHOWS THE TENDENCY TO DEPART FROM CARBOXYL.

 

SPECIFICATIONS:

PURITY

99.0% MIN

LOSS ON DRY

0.5% MAX

ASH

0.15% MAX

PH VALUE

2.0-3.5

HEAVY METAL (Pb)

0.001% ,MAX.

SULPHATE (SO42-)

0.05% MAX

CHLORIDE (Cl-)

0.01% MAX

 

USES: AN AGENT FOR COMPLEXATION, EDTA IS MAINLY USED FOR WATER TREATMENT, AS AN ADDITIVE TO DETERGENT, CHEMICAL FOR PHOTOGRAPHY, PAPERMAKING AND OIL FIELD. IT IS ALSO USED AS DETERGENT FOR BOILER CLEANING AND REAGENT IN CHEMICAL ANALYSIS.

 

UN NO.: 9117             CLASS: 9