|
Appearance
|
White crystalline powder
|
|
Assay
|
98 - 100.5%
|
|
Appearance of solution
|
Clear and colorless
|
|
Heavy metal (as Pb)
|
Max 0.002%
|
|
Iron (Fe)
|
Max 0.005%
|
|
Nitrilotriacetic acid (HPLC)
|
Max 0.1%
|
|
Formaldehyde (HCHO)
|
Max 0.001%
|
|
Sulphated ash (at 600°C)
|
Max 0.2%
|
|
Chloride (Cl)
|
Max 0.02%
|
|
Sulphate (SO4)
|
Max 0.1%
|