Ferric sulfate is a sulfate of iron (III) with the formula Fe2(SO4)3. Usually yellow, water-soluble crystals, orthorhombic. It is used as a mordant and coagulant for industrial wastewater, as well as in pigments. Ferric sulfate is used in medicine as an astringent and a hemostatic agent. Large quantities of ferric sulfate can be obtained by the reaction of sulfuric acid, a hot solution of ferrous sulfate, with an oxidizing agent such as nitric acid or hydrogen peroxide. 2 FeSO4 + H2SO4 + H2O2 = Fe2(SO4)3 + 2 H2O
The domestic ferric sulfate reagent is usually "Fe2(SO4)3·xH2O" with iron content of 21~23%, that is, x≈6, and the relative molecular mass is about 507.73.
Name | Ferric sulfate | EINECS | 233-072-9 |
CAS No. | 10028-22-5 | Density | 3.097 g/cm3 |
PSA | 265.92000 | LogP | -0.77660 |
Solubility | Slightly soluble in water | Melting Point | 480 °C
|
Formula | Fe2O12S3 | Boiling Point | 330 °C at 760 mmHg |
Molecular Weight | 399.88 | Flash Point | N/A |
Transport Information | UN 9121 | Appearance | Yellow crystalline solid or a grayish-white powder |
Appearance and properties: yellow crystalline solid or a light gray-white powder
Density: 3.097
Boiling point: 330ºC at 760 mmHg
Melting point: 480°C
Storage conditions: warehouse low temperature, ventilation, dry, moisture-proof, sealed storage
Production method
It is made by reacting oxides or ferric hydroxide with sulfuric acid
Use
Used as iron salt inorganic polymer flocculant, mainly used in urban drinking water, industrial water supply as an analyticalreagent, water purification agent, iron catalyst and mordant for pigment, medicine, and used as mordant, water purificationagent