Crystalline Boron

Crystalline Boron features a β-rhombohedral structure and represents the most stable allotrope of elemental boron known to date. It is supplied as grey-brown powder (15–60 μm) or granules (1–10 mm), with purity grades ranging from 2N to 6N. It delivers outstanding chemical inertness and superior oxidation resistance at ambient temperature. With a Mohs hardness of 9.3 — second only to diamond — and a low density of merely 2.34 g/cm³, it is hailed as the lightest metalloid. Its melting point reaches 2076 °C, granting exceptional thermal stability. It is widely adopted in semiconductor doping, superhard material synthesis, special alloys, aerospace and military industries.