Ferric ammonium sulfate
Revision as of 06:03, 24 July 2013 by (username removed)
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.)
Other Properties
Soluble in water. Insoluble in ethanol.
| Composition | FeNH4(SO4)2.12H2O |
|---|---|
| Melting Point | 37 |
| Density | 1.71 |
Hazards and Safety
Skin contact, inhalation or ingestion may cause slight irritation.
Authority
- 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