CHALCOPYRITE Chemical Properties

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

MSDS

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CHALCOPYRITE Usage And Synthesis

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.

Uses

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

CHALCOPYRITE(1308-56-1)Related Product Information

• Barium sulfate
• PYRITE
• Iron sulfide
• CHALCOPYRITE
• COPPER(II) SULFIDE
• Ferrous sulfide