Aug 14 2013
Topics Covered
Description
Applications
Chemical Properties
Electrical Properties
Thermal, Mechanical and Optical Properties
Safety Information
Description
Iron disulfide is a cubic chemical compound with the formula FeS2. It is usually found associated with other sulfides or oxides in metamorphic rock, sedimentary rock and quartz veins. It is dark gray to black in color, and also possesses a metallic luster and pungent odor.
Applications
Iron disulfide finds applications in the following areas:
- Lithium metal sulfide batteries
- Molding compounds
- Production of sulfuric acid
- Battery recycling
- Solar photovoltaics.
Chemical Properties
The chemical properties of iron disulfide are provided in the table below:
| Chemical Properties |
| Chemical Formula |
FeS2 |
| Molecular Weight |
87.91 |
| CAS No. |
1317-37-9 |
| Group |
Iron – 8
Sulfur – 16 |
| Crystal Structure |
Cubic |
| Lattice Constant |
5.4175 Å |
Electrical Properties
The electrical properties of iron disulfide are provided in the table below:
| Electrical Properties |
| Intrinsic Carrier Concentration |
1 x1019 cm-3 |
| Band Gap |
0.95 eV |
Thermal, Mechanical and Optical Properties
The thermal, mechanical and optical properties of iron disulfide are provided in the tables below:
| Thermal Properties |
| Decomposition Temperature |
600°C |
| Heat of Vaporization |
18.67 kJ/mol |
| Mechanical Properties |
| Density |
5.02 g/cm3 |
| Melting Point |
1194°C |
| Mohs Hardness |
6.3 |
| Optical Properties |
| Refractive Index |
1.56 |
Safety Information
| Safety Information |
| Risk Phrases |
R32 - Contact with acids liberates very toxic gas
R36 - Irritating to eyes
R37 - Irritating to respiratory system
R38 - Irritating to skin. |
| Safety Phrases |
S 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S 36 - Wear suitable protective clothing
S 37 - Wear suitable gloves
S 39 - Wear eye/face protection. |