EDTA Acid
Appearance : White Powder
Purity : 99.0% min
Chloride : 0.01% max
Sulfate : 0.1% max
Fe : 10ppm max
Heavy metal (as Pb) : 10ppm max
pH : 2.8 – 3.0
EDTA 2Na
Appearance : White Powder
Purity : 99.0% min
Chloride : 0.005% max
Fe : 0.005% max
Pb : 0.005% max
Burnt Loss : 10% max
pH : 4.0 – 5.0
EDTA 4Na
Appearance : White Powder
Purity : 99.0% min
Fe : 0.001% max
Pb : 0.002% max
pH : 10.5 – 11.5