Agent Name

Ammonium ferric sulfate

CAS Number

10138-04-2

Formula

Fe.H3-N.2H2-O4-S

Major Category

Metals

Synonyms

Ammonium ferric alum; Ammonium iron disulfate; Ammonium iron sulfate; Ferriammonium sulfate; Ferric ammonium alum; Ferric ammonium disulfate; Ferric ammonium sulfate; Iron ammonium disulfate; Monoammonium ferric disulfate; Monoammonium ferric sulfate; Phenistix; Ammonium iron bis(sulphate); Sulfuric acid, ammonium iron(3+) salt (2:1:1); [ChemIDplus] 7783-83-7: Ferric ammonium sulfate dodecahydrate; Ferric ammonium sulfate; Iron ammonium sulfate dodecahydrate; Sulfuric acid, ammonium iron(3+) salt (2:1:1), dodecahydrate; [ChemIDplus] Ferric alum; Iron alum; [Merck Index]

Category

Metals, Inorganic Compounds

Description

Dodecahydrate; Colorless to pale violet transparent solid; Efflorescent and odorless; Soluble in water; [Merck Index] Pale violet transparent crystals; [Mallinckrodt Baker MSDS]

Sources/Uses

Used as an indicator (argentimetric titrations), mordant (dyeing and printing textiles), and drug (astringent and styptic); [Merck Index] Permitted for use as an inert ingredient in non-food pesticide products; [EPA]

Comments

The dodecahydrate is CAS# 7783-83-7; [Merck Index] May cause irritation; [Mallinckrodt Baker MSDS] See "Iron salts, soluble."

Exposure Assessment
TLV (ACGIH)

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

Links to Other NLM Databases
Toxicity Information

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Chemical Information

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Related Information in HazMap
Processes

Industrial Processes with risk of exposure: