|
Appearance
|
White crystalline powder
|
|
Assay (complexometric; on dried basis)
|
99.0 – 102.0%
|
|
Loss on drying
|
6.6 – 10.6%
|
|
Solubility
|
Clear solution (16% in water)
|
|
Infrared spectrum
|
Conforms
|
|
Identification:Iron
|
Passes test
|
|
Identification: Sodium
|
Passes test
|
|
Iron (Fe)
|
Max 0.01%
|
|
Sodium (Na)
|
19.7 - 23.0 %
|