Fe₂O₃Fe2O3159.6900 g·mol⁻¹
Molar mass159.690 g·mol⁻¹calc 159.687 • Atomic weights: CIAAW 2021 (conventional atomic weights)
FormulaFe₂O₃Fe2O3
Classoxide • ionicsolid
| Element | Count | Mass (g/mol) | Mass % |
|---|---|---|---|
| Fe | 2 | 111.690 | 69.94% |
| O | 3 | 47.997 | 30.06% |
Physical properties
- State at STP
- solid
- Density
- 5.24 g·cm⁻³ (hematite at 20 °C, 1 atm)
- Melting point
- 1838 K (1 atm)
- Boiling point
- —
Structure & bonding
Fe3+ in octahedral sites of oxide lattice; antiferromagnetic. Main ore hematite.
Occurrence & preparation
Natural as hematite; produced by calcination of iron hydroxides.
Uses
- Pigment
- Steel production ore
Safety
Dust irritates lungs; low chemical toxicity.
Consult current SDS. — consult current SDS before handling.