BORON PHOSPHIDE Chemical Properties

solubility 

reacts with H2O, acid solutions

form 

red cubic crystals or powder

color 

Red

Water Solubility 

reacts with H2O and acids, releasing toxic fumes [HAW93]

Crystal Structure

Hexagonal, Wurtzite (Zincite) Structure - Space Group P 63mc

Knoop Microhardness

37000, N/mm2

EPA Substance Registry System

Boron phosphide (BP) (20205-91-8)

BORON PHOSPHIDE Usage And Synthesis

Uses

Boron phosphide is used in research on optical absorption and as an ultrahard inorganic material.

Application

Studies have shown that boron phosphide films exhibit excellent light transmittance over a wide wavelength range and possess the best rain erosion resistance among similar films, maximizing the improvement of the damage threshold velocity (DTV) of the substrate. Compared to germanium carbide, boron phosphide exhibits superior mechanical properties, with a Knoop hardness of 47 GPa, more than twice that of sapphire, and an elastic modulus as high as 270 GPa, the highest among all binary covalent compounds with a zincblende structure. Compared to diamond, boron phosphide thin films demonstrate better adhesion, facilitating large-area deposition. Compared to DLC, boron phosphide exhibits lower internal stress, adheres well to various substrate materials, and has no limitations on film thickness. Therefore, boron phosphide is a preferred material for antireflective protective films for infrared windows resistant to high-speed flight.

Chemical Properties

maroon powder(s); -100 mesh at 97.5% purity; refractory; hardness 9.5 Mohs; band gap 2.0eV (300K); material with formula B13P2[12008-82-1] is -325 mesh, 10μm or less of 99% purity [HAW93] [CER91] [KIR82]

BORON PHOSPHIDE(20205-91-8)Related Product Information

• Rutile
• Calcium fluoride
• Silicon nitride
• ARSENIC TRIFLUORIDE
• COPPER(II) SULFIDE
• Boron carbide
• Zinc sulfide
• INDIUM PHOSPHIDE
• CALCIUM PHOSPHIDE
• BORON PHOSPHIDE