| Synonyms |
Citric acid, ammonium iron (3+) salt Ammonium ferric citrate Ammoniocitrate of iron Iron citrate 1,2,3-propanetricarboxylic acid,2-hydroxy-,ammonium iron (3+) salt Ferric ammonium citrate, Brown Ferric ammonium citrate, Green |
| Appearance |
Clear green crystals or reddish-brown powder Odorless to slight ammonia odor |
| Uses | In iron-toning solutions |
| Chemical Formula | C6H8O7.xFe.xNH3 |
| Notes |
Occurs also as brown scales, but green scales are preferred for photographic purposes. Both brown and green scales are light-sensitive. Keep well closed and protected from light. Fresh ferric ammonium citrate tends to form a layer of mold after a few days. This cab be filtered or lifted off. After the first time it appears the mold rarely returns. |