CHALCOPYRITE
- CAS NO.：1308-56-1
- Empirical Formula: CuFeS2
- Molecular Weight: 153.47
- MDL number: MFCD00064817
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-08-19 17:35:41
What is CHALCOPYRITE?
Chemical properties
yellow brass colored crystal(s); tetr; hardness 3.5–4.0; chalcopyrite is an ore; can be synthesized by reacting KFeS with ammonia copper solution; used in semiconductor research [MER06]
Physical properties
Habit: rare tetrahedral disphenoidal crystals, botryoidal, striated, druse, usually zoned.
Color: brass yellow or honey yellow.
Luster: metallic.
Diaphaneity: opaque.
Streak: greenish black.
Cleavage: {011}, {111}.
Fracture: uneven, brittle.
Twinning: {112}.
Chemical: attacked by HNO3, corroded by a mixture of KOH + KMnO4.
Occurrence: veins
and disseminated in metamorphic and igneous rocks (e.g., gabbros, norites).
Others: n-type semiconductor with ΔEg = 0.01 eV–0.03 eV. Electrical resistivity
150 to 9000 μΩ.cm., melting point 950°C.
The Uses of CHALCOPYRITE
The ore as source of copper. The synthetic material in semiconductor research.
Definition
ChEBI: A sulfide mineral with formula CuFeS2. Chalcopyrite is the most important copper ore
Properties of CHALCOPYRITE
| Melting point: | 950°C |
| Density | 4.1-4.3 |
| solubility | Soluble in aqua regia and nitric acid; insoluble in hydrochloric acid |
| form | yellow tetragonal crystals |
| color | yellow tetragonal crystals, crystalline |
| Water Solubility | soluble HNO3, aqua regia; insoluble HCl [MER06] |
| Crystal Structure | Tetragonal, Chalcopyrite Structure - Space Group I(-4)2d |
| Merck | 14,2038 |
Safety information for CHALCOPYRITE
Computed Descriptors for CHALCOPYRITE
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