TJSW® Ferrous Sulfate

The industrial by-product ferrous sulfate heptahydrate (FeSO₄.7H₂O) produced in the production process of sulfuric acid titanium dioxide can reduce the water-soluble hexavalent chromium (Cr6+) in cement to trivalent chromium (Cr3+) and precipitate it in cement because ferrous sulfate has very strong reducibility in the air, so as to solve the problem of high hexavalent chromium (Cr6+) content in cement.