|
Appearance
|
Off white crystalline powder
|
|
Assay (complexometric)
|
98 - 102%
|
|
pH (20% solution)
|
6.5 - 8.0
|
|
Appearance of solution
|
Passes test
|
|
Insoluble matter in water
|
Passes test
|
|
EDTA disodium salt
|
Max 1%
|
|
Magnesium-chelating substances
|
Passes test
|
|
Nitrilotriacetic acid
|
Max 0.1%
|
|
Chloride (Cl)
|
Max 0.1%
|
|
Water (H2O)
|
5 - 13%
|
|
Heavy metal (as Pb)
|
Max 0.002%
|
|
Copper (Cu)
|
Max 0.002%
|
|
Iron (Fe)
|
Max 0.008%
|
|
Nickel (Ni)
|
Max 0.002%
|
|
Lead (Pb)
|
Max 0.002%
|