1. Water Treatment:As a flocculant for removing phosphate, heavy metals and suspended solids, reducing water eutrophication.
2. Agriculture:As an iron fertilizer to adjust soil pH and control iron deficiency chlorosis in fruit trees;As a pesticide for the control of wheat smut.
3. Industry:Used in the manufacture of iron oxide pigments, iron salts, mordants, tanning agents and inks;Raw material for polymeric ferric sulfate and catalyst.
4. Pharmaceutical / Food:Pharmaceutical grade: used as an anti-anemic agent (for iron deficiency anemia);Food grade: used as an iron fortifier in table salt, sandwich candies, etc.
5. Analytical Chemistry:Used as a reducing agent, chromatographic reagent and raw material for ferrite production.