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Ammonium iron(III) sulfate dodecahydrate, 98+%
Description
Ammonium iron(III) sulfate dodecahydrate is a reagent that is used as a mordant in dyeing and textile printing. It is also utilized in analytical chemistry as an iron standard. In biochemistry, ammonium ferric sulfate is used as a catalyst for the generation of free radicals. Increased xanthine oxidase and xanthine oxidoreductase activity in cultured rat cells has been demonstrated in the presence of ammonium ferric sulfate. It may be used as an iron source to restore enzymatic activity in apoenzymes, such as for soybean lipoxygenase.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
Ammonium iron(III) sulfate dodecahydrate is a reagent that is used as a mordant in dyeing and textile printing. It is also utilized in analytical chemistry as an iron standard. In biochemistry, ammonium ferric sulfate is used as a catalyst for the generation of free radicals. Increased xanthine oxidase and xanthine oxidoreductase activity in cultured rat cells has been demonstrated in the presence of ammonium ferric sulfate. It may be used as an iron source to restore enzymatic activity in apoenzymes, such as for soybean lipoxygenase.
Solubility
Soluble in water (1240 mg/ml at 25°C) and 1% (v/v) aqueous HCl (100 mg/ml). Insoluble in alcohol.
Notes
Stable under recommended storage conditions. Incompatible with oxidizing agents.

Specifications
Specifications
Melting Point | 39°C to 41°C |
Quantity | 500 g |
Linear Formula | NH4Fe(SO4)2·12H2O |
Merck Index | 14,521 |
Solubility Information | Soluble in water (1240mg/ml at 25°C) and 1% (v/v) aqueous HCl (100mg/ml). Insoluble in alcohol. |
Formula Weight | 482.18 (266.00 Anhydrous) |
Percent Purity | ≥98% |
Odor | Odorless |
Density | 1.71 |
Chemical Name or Material | Ammonium iron(III) sulfate dodecahydrate |
Safety and Handling
Hazard Category | H315-H319 |
Hazard Statement | GHS H Statement H315-H319 Causes skin irritation. Causes serious eye irritation. |
Precautionary Statement | P264b-P280-P302+P352-P305+P351+P338-P332+P313-P362 |
EINECSNumber | 233-382-4 |
RTECSNumber | WS5900000 |
TSCA | Yes |
Recommended Storage | Ambient temperatures |
RUO – Research Use Only
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