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Silicon Boride Powder: Introduction Silicon Boride This lightweight ceramic compound is also known as “boron silicide”, and it’s made from silicon and boron. Silicon triboride is one of the most common types.
The glossy, gray-colored powder of silicon hexaboride is known as hexaboron siliicide. SiB6 is its chemical formula. The molecular weight of SiB6 is 92.95. It has a relative density of 2.47g/cm3. The melting point is 2200. Hardness ranges between ruby or diamond. It can conduct electricity. It is not soluble in water. It can be heated with chlorine or water vapor to oxidize the surface.

Silicon Boride powder’s physicochemical properties
SiB6 crystal structure includes interconnected icosahedrons, polyhedrons that have 20 faces and 26 faces respectively, and an isolated silicon and/or boron atom.
It’s insoluble in water. This material is extremely strong and stable under extreme temperatures. This carbide has higher grinding efficiency that boron.
SiB6 reacts with oxygen, heat, or air to cause surface oxidation. SiB6 can then be eroded by heating sulfuric acid, bromine, fluorine, chlor, and boiling. The electrical conductivity of Borides is high. Hexamborides possess a low thermal expansion coefficient, and a high thermal neutron crossing-section.
Silicon Boride Powder Properties
Additional Names SiB6 powder, silicon hexaboride
CAS No. 12008-29-6
Formula compound SiB6
Molecular Weight 92.95
Appearance From dark grey to black powder
Melting Point 1950
Boiling Point N/A
Density 2.43g/cm3
Solubility in water Unsolvable
Get the exact Mass 93.04
Silicon Boride SiB6 Powder CAS 12008-29-6

Silicon Boride Powder preparation
It is possible to heat the mixture of boron, silicon directly. You can remove excess silicon with HNO3 and HF. Molten KOH can decompose the B3Si.

Silicon Boride Powder: Applications
One used as a standard abrasive and for grinding cemented caride.
2. Used as an engineering ceramic material, sandblastingnozzle, making gas engine blade, or other special-shaped parts and seals.
3. It is used as an oxidant in refractory.

Silicon Boride Powder Main Supplier
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