CN
Boron powder
| Identification | Chinese Name: | 硼粉 | ||
| English Name: | Boron | |||
| CAS No.: | 7440-42-8 | Abbreviation / Alias | B； | |
| Structural Formula: |  |
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| Molecular Formula: | B | Molecular Weight | 10.81 | |
| HS Code: | 28045000 | UN No.: | 3178 | |
| Physical and Chemical Properties | Appearance and Properties: | Black-grey crystalline powder; | ||
| Main Applications: | Used to dope silicon semiconductors, in high-temperature materials, high-temperature high-power semiconductors, and as an additive for metal spraying. | |||
| Assay | ≥99.90% | Particle size | 50–80 nm | |
| Relative Density (water = 1): | 2.34 | Flash Point (°C): | / | |
| Melting Point: | 2300°C | Boiling Point: | 2550°C | |
| Hazard Class: | 4.1 | / | / | |
| Packaging and Transport | Packing Group: | Ⅱ | Packaging: | 100 g/pack, PE liner, aluminum-foil outer bag |
| Storage and Transport Notes: | Store at room temperature. | |||
| Status | Commercial production | |||
Boron powder Specs
<table border="0" cellpadding="0" cellspacing="0" height="76" style="width: 793px;" width="793">
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<td colspan="3" height="19" style="height: 19px; width: 452px;" x:str="">Item</td>
<td colspan="2" style="width: 342px;" x:str="">Specification</td>
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<tr height="19">
<td colspan="3" height="19" style="height: 19px; width: 452px;" x:str="">Appearance</td>
<td colspan="2" style="width: 342px;" x:str="">Black-grey crystalline powder</td>
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<td colspan="3" height="19" style="height: 19px; width: 452px;" x:str="">Assay</td>
<td colspan="2" style="width: 342px;" x:num="0.98">99.9%min</td>
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<tr height="19">
<td colspan="3" height="19" style="height: 19px; width: 452px;" x:str="">Particle size</td>
<td colspan="2" style="width: 342px;" x:str="">50–80 nm</td>
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</table>
Product Introduction
<p>Applications:<br />
(1) Fireworks: an ignition component. The boron flame is green.<br />
(2) Fuel-rich propellants for rockets and missiles.<br />
(3) Automotive airbags: an initiator.<br />
(4) An additive for powder metallurgy and a surface coating for thermal spray.<br />
(5) Metallurgy: a gas scavenger, and in the melting of special steels.<br />
(6) Pharmaceuticals and organic synthesis: a catalyst.<br />
(7) Synthesis of borides: boron functional ceramics, boride superconductors and similar materials.<br />
(8) The glass industry.<br />
(9) Electronics: the ignitor electrode (cathode material) of an ignitron.<br />
(10) Welding powder: welding in critical weapons components.</p>