Ferrous ammonium sulfate

Synonyms

Ammonium ferrous sulfate; Ammonium iron sulfate; Ammonium iron sulfate (2:2:1); Ammonium iron(II) sulfate; Diammonium ferrous sulfate; Diammonium iron sulfate; Ferroammonsulfat; Ferrous ammonium sulfate (Fe(NH4)2(SO4)2); Ferrous ammonium sulphate; Ferrous diammonium disulfate; Mohr's salt; Mohr'sches salz; Sulfuric acid, ammonium iron(2+) salt (2:2:1); Vitaferro; [ChemIDplus] NA9122

Category

Metals, Inorganic Compounds

Description

Light green crystals, deliquescent and soluble in water; [CAMEO]

Sources/Uses

Used in medicine, metallurgy, and chemical analysis; [CAMEO] Also used in photography, iron-plating baths, and as a polymerization catalyst; Approved for use in the production of cellophane for food packaging; [HSDB]

Comments

A skin and eye irritant; [CAMEO] LD50 (rats) = 0.5-5 g/kg; [HSDB] Could cause iron poisoning and liver damage if ingested; [MSDSonline] See "Iron, soluble compounds."

Biomedical References

1 mg/m3, as Fe (soluble iron salts)

will not burn

Hepatoxic (a) from occupational exposure (secondary effect) or (b) in animal studies or in humans after ingestion

Processes

Industrial Processes with risk of exposure:

• Metal Extraction and Refining
• Photographic Processing