GENERAL
Chemical Name Ethylenediaminetetraacetic acid Tetrasodium salt
Chemical Structure Na4-EDTA • 2H20
Molecular Weight 416 for Na4-EDTA • 2H20
380 for Na4-EDTA
Appearance White crystalline powder
SPECIFICATIONS
PROPERTIES LIMITS
Assay, % 98.0 min
Content of Ethylenediaminetetraacetic acid
Tetrasodium salt (MW 380), % 89.0 min
pH , 1% solution at 25 oC 10.5 – 11.5
Specific Gravity, at 20 oC 620 – 760
Chelating Value, mgCaCO3/g 225 min
Heavy metal ( as Pb), % 0.005 max
Colour, AHPA (as 30% solution) 80 max
Iron content , % 0.001 max
APPLICATIONS
Cleaning products, textiles, oilfield applications, personal care products, pulp and paper, scale
removal and prevention, water treatment.