Boron powder is a fine, dark gray to black powder composed of elemental boron, featuring high purity, high hardness, and excellent chemical stability. Naturally, boron occurs mainly in compounds such as borates and boric acid. Boron powder is produced through industrial processes such as high-temperature reduction or chemical reactions, with particle sizes ranging from the nanometer scale to several hundred micrometers, customizable according to application requirements.
ULPMAT offers high-purity boron powder for your research and production needs. Please do not hesitate to contact us if you have any requirements.
High purity: Available in ≥99% or ≥99.99%
High hardness: Mohs hardness ~9.3
High melting point: ~2076 °C
Customizable particle size: Available in nano-scale, micron-scale, and other grades
Metallurgical industry: Used as a deoxidizer and alloying additive to improve hardness, wear resistance, and corrosion resistance of alloys
Electronics & semiconductors: Used for P-type doping of silicon wafers, boride thin film preparation, and superconducting materials
Nuclear industry: Due to boron’s high neutron absorption cross-section, it is used in control rods and radiation shielding materials
High-performance ceramics: For the production of boron carbide (B₄C) and other wear-resistant, high-temperature ceramics
Pyrotechnics & fuel additives: Used as a high-energy fuel component in solid rocket propellants and pyrotechnic compositions
Boron powder should be stored in a sealed container in a dry, cool place, away from strong oxidizing agents and moisture. Recommended packaging includes antistatic double-layer polyethylene bags, vacuum sealed, placed inside cartons or iron drums for protection. Operators should wear dust masks, safety goggles, and chemical-resistant gloves to avoid dust inhalation.
Appearance: Black or dark brown powder
Melting Point: 2150-2301°C
Boiling Point: 2550-2658°C
Density: Amorphous boron powder has a density of 2.37 g/cm³, while crystalline boron has a density of 2.34-2.46 g/cm³
Mohs Hardness: 9.3
Stability: Stable at room temperature, begins to oxidize upon heating to 300°C, and becomes flammable above 700°C.
Solubility: Insoluble in water, slightly soluble in nitric acid
Reactivity: Reacts directly with elements such as fluorine and oxygen, and forms borides with metals (such as copper, iron, and aluminum) at high temperatures.
Inner packaging: Antistatic double-layer polyethylene (PE) bags, vacuum sealed
Outer packaging: Carton box or iron drum with foam cushioning for shock protection
Standard package sizes: 100 g/bottle, 500 g/bottle, 1 kg/bottle, 5 kg/drum, 25 kg/drum (customization available upon request)
Handling notes: Keep packaging sealed, moisture-proof, and protected from mechanical impact. Store away from strong oxidizing agents.
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