Agricultural nutrients
Agricultural land and orchards
Raw material in the manufacture of pigments
Used in photography
As an additive to food supplements
In agricultural soils to supply iron with iron deficiency of iron sulfate fertilizer used.
As raw material for other agricultural fertilizers, NPK, macro and micro
Iron pigment manufacturing industry
The mining industry for the deposition with halogen such as chlorine and fluorine
Used as a catalyst
The leather tanning industry
Water treatment
The casting of cast iron
