Product Datasheet and Specification
00207
Ammonium Ferric Sulphate Dodecahydrate 98.5% AR
Ammonium iron (III) sulphate dodecahydrate ; (Ferric Alum)
CAS : 7783-83-7
HS Code : 2833.29900
Molecular Formula : NH4Fe(SO4)2.12H2O
Molecular Weight : 482.19
Shelf Life : 60 Months
Specifications
Appearance
Pale violet crystals |
Assay (iodometric)
98.5 - 102% |
Insoluble matter
Max 0.01% |
Chloride (Cl)
Max 0.001% |
Ferrous ion (Fe2+)
Passes test (about 0.001%) |
Nitrate (NO3)
Max 0.01% |
Calcium (Ca)
Max 0.01% |
Magnesium (Mg)
Max 0.005% |
Potassium (K)
Max 0.005% |
Sodium (Na)
Max 0.02% |
Copper (Cu)
Max 0.003% |
Zinc (Zn)
Max 0.003% |
Substance not precepitated by NH3 (as SO4)
Max 0.05% |