Ferric ammonium sulfate
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Description
Pale lilac crystals that effloresce in air. Ferric ammonium sulfate is used in toning solutions for black and white photo processing. It is also used as a mordant in textile dyeing.
Synonyms and Related Terms
ferric alum; iron ammonium sulfate; ferric ammonium alum; ammonium ferric sulfate; ferric ammonium sulphate (Br.)
Risks
- Skin contact, inhalation or ingestion may cause slight irritation.
- IntegraChem: SDS
Physical and Chemical Properties
Soluble in water. Insoluble in ethanol.
| Composition | FeNH4(SO4)2.12H2O |
|---|---|
| Melting Point | 37 C |
| Density | 1.71 g/ml |
Resources and Citations
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979