EDTA

SYNONYM: ETHYLENE DIAMINE TETRAACETIC ACID

 

 FORMULA: C10H16N2O8

 M. W.: 292.2

 CAS NO.: 60-00-4

 DESCRIPTION: IT IS A KIND OF WHITE CRYSTAL POWDER, MELTING POINT IS 240℃ AND SOLUBILITY 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:

CONTENT 

99% MIN. 

CHELATION PH=11 

339mg CaCO3/g 

PH (SATURATED SOLUTION)

2.5-3.0 

HEAVY METAL (Pb) 

0.001% MAX. 

Fe 

0.001% MAX. 

RESIDUE ON IGNITION 

0.15% 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.

 PACKING: 25KG/KNITTED PLASTIC BAG LINED WITH KRAFT PAPER.