Boron phosphide (BP) (also referred to as boron monophosphide, to distinguish it from boron subphosphide, B12P2) is a chemical compound of boron and phosphorus. It is a semiconductor.[3]
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3D model (JSmol)
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ECHA InfoCard | 100.039.616 |
PubChem CID
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CompTox Dashboard (EPA)
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Properties | |
BP | |
Molar mass | 41.7855 g/mol |
Appearance | maroon powder |
Density | 2.90 g/cm3 |
Melting point | 1,100 °C (2,010 °F; 1,370 K) (decomposes) |
Band gap | 2.1 eV (indirect, 300 K)[1] |
Thermal conductivity | 4.6 W/(cm·K) (300 K)[2] |
Refractive index (nD)
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3.0 (0.63 µm)[1] |
Structure | |
Zinc blende | |
F43m | |
Tetrahedral | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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Crystals of boron phosphide were synthesized by Henri Moissan as early as 1891.[4]
Pure BP is almost transparent, n-type crystals are orange-red whereas p-type ones are dark red.[5]
BP is not attacked by acids or boiling aqueous alkali water solutions. It is only attacked by molten alkalis.[5]
BP is known to be chemically inert and exhibit very high thermal conductivity.[2] Some properties of BP are listed below: