Eisendihydroxid Chemische Eigenschaften,Einsatz,Produktion Methoden
Chemische Eigenschaften
white, amorphous powder(s) or white to pale green, hexagonal crystal(s); oxidizes in air [MER06]
Physikalische Eigenschaften
Pale green hexagonal crystals (in partially oxidized form) or white amorphous powder (when pure); density 3.4g/cm
3; decomposes on heating; insoluble in water (1.5 mg/L at 20°C), KSP 8.0 x 10-
16; soluble in acids; moderately soluble in ammonium salt solutions; insoluble in alkalies.
Verwenden
The compound is used in abrasives; and in pharmaceutical applications.
synthetische
Iron(II) hydroxide may be prepared by precipitation of an iron(II) salt solution with caustic soda or caustic potash in the absence of air. Pure compound may be obtained by mixing solutions of caustic potash and iron(II) sulfate— both the solutions made in freshly boiled water—in a reducing atmosphere of hydrogen:
Fe
2+ + 2OHˉ → Fe(OH)
2.
Eisendihydroxid Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
