Chemical Properties
slightly grey-purple adhering crystals or powder
Uses
Ammonium ferric sulfate dodecahydrate may be used as a catalyst to synthesize:
- Isoamyl acetate from acetic acid and isoamyl alcohol.
- 2-Amino-5-(5-nitro-2-thienyl)-1,3,4-thiadiazole from 5-nitrothiophene-2-carboxaldehyde thiosemicarbazone via oxidative cyclization.
Uses
Medicine, analytical chemistry, textile dyeing
(mordant).
Definition
Ferric alum: One of the alums,K
2SO
4.Fe
2(SO
4)
3.24H
2O, in which thealuminium ion Al
3+ is replaced bythe iron(III) (ferric) ion Fe
3+.
Purification Methods
Crystallise it from aqueous ethanol.