Ferric Ammonium Sulfate

Ferric Ammonium Sulfate Dodecahydrate

[Fe(NH4)(SO4)2•l2H2O]

Caution

Avoid contact with acid and fumes.

Preparation
0.1 N Ferric Ammonium Sulfate Dodecahydrate

1. Add approximately 800 mL of distilled water to a 1-litre volumetric flask containing a Teflon stir bar.
2. Weigh 49 g of Ferric Ammonium Sulfate Dodecahydrate. Reagent Preparation Procedures 4-14
3. Quantitatively transfer to the 1-litre volumetric flask while stirring.
4. Remove stir bar and dilute to full volume with distilled water. Replace stir bar and stir the saturated solution thoroughly for approximately 5 minutes.
5. Filter the saturated solution using a MILIPORE apparatus with HA 0.45 μm filter membrane, or equivalent.