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Appearance
|
Light blue or blue-green or green powder or crystals
|
|
Assay
|
Min 99.0%
|
|
Ferric ion (Fe+3)
|
Max 0.1%
|
|
Copper (Cu)
|
Max 0.005%
|
|
Insoluble matter
|
Max 0.01%
|
|
pH (5% solution in water)
|
3.0 - 4.0
|
|
Chloride (Cl)
|
Max 0.001%
|
|
Phosphate (PO4)
|
Max 0.001%
|
|
Manganese (Mn)
|
Max 0.05%
|
|
Zinc (Zn)
|
Max 0.005%
|
|
Calcium (Ca)
|
Max 0.005%
|
|
Magnesium (Mg)
|
Max 0.002%
|
|
Potassium (K)
|
Max 0.002%
|
|
Sodium (Na)
|
Max 0.02%
|