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Germany and the United States are the leading exporters of iron sesquisulfate, accounting for the largest shares of global shipments in recent years, while India, Brazil, and South Africa represent the most significant importers. Iron sesquisulfate prices have remained relatively stable amid modest volume fluctuations across key trade corridors. Import volumes have shown gradual growth in emerging agricultural markets, particularly in Latin America and Southern Africa, reflecting increased demand for iron-based soil amendments and water treatment applications.
Iron sesquisulfate (CAS 35139-28-7) is a yellow to brownish-yellow crystalline solid, typically supplied as a hydrated powder or granular material; it is non-volatile, odorless, and decomposes before melting. It is an inorganic iron(III) salt, specifically the sulfate of ferric iron with a nominal Fe₂(SO₄)₃ stoichiometry, often existing in hydrated forms. Industrially, it serves primarily as a coagulant and flocculant in water and wastewater treatment, leveraging its ability to hydrolyze and form insoluble iron(III) hydroxide precipitates. It is also employed as a precursor in the production of iron oxide pigments and as a catalyst or reagent in select metallurgical and ceramic processes. Its applications are concentrated in water treatment, pigment manufacturing, and specialty inorganic synthesis.
This chemical is included in Fine Chemicals. See more about what is Ferric Sulfate Heptahydrate and Ferric Sulfate Heptahydrate SDS information.
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