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Boron Amorphous (B)

Boron (B) is a semi-metal of which several allotropes exist. Boron is very hard and very resistant to heat. One main allotrope is a brown amorphous powder when pure. It is more reactive than crystalline boron as it slowly oxidizes in the air and can react violently with acid.

Military Specifications: MIL-B-51092 (ORD), PA-PD-451, OS 11608
Grade I SB95 (93%-97% Boron purity) Particle Size range 0.8 micron max FSSS
Grade II SB90 (90%-92% Boron purity) Particle Size range 1.0 micron max FSSS
Grade III SB86 (86%-89.9% Boron purity) Particle Size range 1.2 micron max FSSS
SB2000 (55%-77% Boron purity)
Typical Applications

Amorphous boron is used in the automotive industry as an igniter in airbags and belt tighteners. It is used in pyrotechnics and rockets as an additive in flares, igniters and delay compositions, solid propellant fuels, and explosives. Other uses include the preparation of refractory metal borides, a sintering additive for advanced ceramics, a reducing additive in fluxes for soldering stainless steel, and a neutron absorber in nuclear technology.

Packaging Options

50 lb. net per metal drums
R&D samples available in 1 lb. vacuum sealed envelopes


Boron (B) TSCA (SARA Title III) Status: Listed. For further information, please call the EPA Office of Chemical Safety and Pollution Prevention (OCSPP) at 202-564-2902. Boron (B) CAS Number: 7440-42-8 Boron (B) UN Number: 1325

Sustainable Qualities

Amorphous Boron is a sustainable material that offers a range of potential applications due to its unique properties. Boron is one of the most abundant elements on Earth, and it is widely available in the form of borates, making it a sustainable resource. Amorphous Boron has high chemical stability, excellent thermal conductivity, and remarkable mechanical strength, making it a promising material for high-tech applications such as nanoelectronics, energy storage, and advanced composites. Its ability to enhance the performance of other materials makes it a valuable component in the pursuit of more efficient and sustainable products.

In terms of circular economy, Amorphous Boron can contribute to the circularity of materials in several ways. Its high chemical and mechanical stability makes it a durable material that can withstand multiple cycles of use and recycling. Additionally, boron-containing materials can be recycled and reused in various applications, contributing to the reduction of waste and the conservation of natural resources. By utilizing Amorphous Boron in the design of products, manufacturers can contribute to a more circular and sustainable economy.

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Select Specifications Available

  • Grade I SB95
  • Grade II SB90
  • Grade III SB86
  • MIL-B-51092
  • OS 11608
  • PA-PD-451
  • SB2000


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