Ferrous sulfate heptahydrate

Agent Name
Ferrous sulfate heptahydrate
CAS Number
Major Category
Ferrous sulfate heptahydrate formula graphical representation
Feosol; Fero-Gradumet; Ferrous sulfate; Fesofor; Fesotyme; Haemofort; Iron protosulfate; Iron sulfate heptahydrate; Iron(2+) sulfate (1:1) heptahydrate; Iron(2+) sulfate heptahydrate; Ironate; Irosul; Melanterite mineral; Mol-Iron; Natabec; Presfersul; Siderotil mineral; Slow-Fe; Szomolnikite mineral; Tauriscite mineral; Iron(II) sulfate (1:1), heptahydrate; Iron(II) sulfate heptahydrate; Sulfuric acid, iron(2+) salt (1:1), heptahydrate; Ferrous sulfate, heptahydrate; [ChemIDplus] Feospan; Fer-in-Sol; Sulferrous; [Merck Index]
Metals, Inorganic Compounds
Blue-green odorless solid; Efflorescent in dry air; Soluble in water; [Merck Index] Green crystalline solid; [Alfa Aesar MSDS]
Used in iron electroplating baths, fertilizers, pesticides, radiation dosimeters, writing ink, process engraving, lithography, dyeing leather, etching aluminum, water treatment, “brown ring” test for nitrates, and food and feed supplements; Also used as a reducing agent, wood preservative, weed killer, polymerization catalyst, plant food, and hematinic; [Merck Index] Formerly registered in the US as a moss killer/fertilizer for lawns; [NPIRS] Used as a nutritional supplement, processing aid, and stabilizer or thickener for foods; [FDA]
A skin, eye, and mucous membrane irritant; May cause gastrointestinal disturbances, shock, cyanosis, coma, and liver damage; [Merck Index] A skin and strong eye irritant; Harmful by ingestion; [Alfa Aesar MSDS]See "Ferrous sulfate." See "Iron salts, soluble."
Biomedical References

Exposure Assessment

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

Adverse Effects

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

Diseases, Processes, and Activities Linked to This Agent


Activities with risk of exposure: