Ammonium ferric sulfate dodecahydrate
Synonym(s):Alum iron, Ferric ammonium sulfate, Iron alum, Iron(III) ammonium sulfate;Ammonium ferric sulfate dodecahydrate;Ammonium iron disulfate dodecahydrate;Ammonium iron(III) sulfate dodecahydrate
- CAS NO.：7783-83-7
- Empirical Formula: FeH7NO5S
- Molecular Weight: 188.96
- MDL number: MFCD00150004
- EINECS: 616-517-5
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-06-22 07:31:40
What is Ammonium ferric sulfate dodecahydrate?
Chemical properties
slightly grey-purple adhering crystals or powder
The Uses of Ammonium ferric sulfate dodecahydrate
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.
The Uses of Ammonium ferric sulfate dodecahydrate
Medicine, analytical chemistry, textile dyeing (mordant).
What are the applications of Application
Ammonium iron(III) sulfate dodecahydrate is an oxidation resistant analytical standard
Definition
Ferric alum: One of the alums,K2SO4.Fe2(SO4)3.24H2O, in which thealuminium ion Al3+ is replaced bythe iron(III) (ferric) ion Fe3+.
Purification Methods
Crystallise it from aqueous ethanol.
Properties of Ammonium ferric sulfate dodecahydrate
| Melting point: | 39-41 °C(lit.) |
| Boiling point: | 230 °C |
| Density | 1.71 |
| storage temp. | Store below +15°C. |
| solubility | H2O: 1 m at 20 °C, complete, yellow-brown to red brown |
| form | Solid |
| color | slightly violet |
| Specific Gravity | 1.71 |
| PH Range | 1 |
| PH | 1.8 (100g/l, H2O, 20℃) |
| Odor | Odorless |
| Water Solubility | 1240 g/L (25 ºC) |
| Merck | 14,521 |
| Exposure limits | ACGIH: TWA 1 mg/m3 NIOSH: TWA 1 mg/m3 |
| CAS DataBase Reference | 7783-83-7(CAS DataBase Reference) |
Safety information for Ammonium ferric sulfate dodecahydrate
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05 |
| GHS Hazard Statements |
H318:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Ammonium ferric sulfate dodecahydrate
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