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Home > Products > Boride Series

Aluminium diboride (ALB2)

Aluminum diboride (AlB2) is a red solid under normal temperature and pressure. It loses its surface gloss when heated and is stable in cold dilute acid. Decomposes in hot hydrochloric acid and nitric acid. It is one of two compounds of aluminum and boron, and the other is AlB12, which is usually called aluminum boride.
Molecular weight:48.604
Density:3.19 g/cm³
Colour:gray
Melting point:920 °C
Formula: AlB2
CAS NO.：12041-50-8
EINECS (EC NO.)：234-923-7
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Aluminium diboride
Aluminium diboride
Product Description Product features Technical Specification Related Products
Product Description
Aluminum diboride (AlB2) is a red solid under normal temperature and pressure. It loses its surface gloss when heated and is stable in cold dilute acid. Decomposes in hot hydrochloric acid and nitric acid. It is one of two compounds of aluminum and boron, and the other is AlB12, which is usually called aluminum boride. Aluminum 12 is a black and shiny monoclinic crystal with a specific gravity of 2.55 (18°C). It is insoluble in water, acid, and alkali, and decomposes in hot nitric acid.
Product features
None.
Technical Specification
Model APS(D50) Purity(%) O(%) N(%) C(%) B(%)
AlB2 0001 -325mesh --- ≤0.5 ≤0.05 ≤0.05 44.2～44.5
Customized chemical composition and particle size can be made according to customer requirements.
 
Element Max Typical Element Max Typical Element Max Typical
Co 0.0010 0.0005 Fe 0.0500 0.0300 P 0.0010 0.0005
As 0.0010 0.0005 K 0.0020 0.0010 Pb 0.0003 0.0001
Bi 0.0003 0.0001 Mg 0.0020 0.0010 S 0.0010 0.0005
Ca 0.0015 0.0006 Mn 0.0010 0.0005 Sb 0.0020 0.0010
Cd 0.0005 0.0001 V 0.0030 0.0015 Si 0.0050 0.0030
W 0.0005 0.0001 Na 0.0020 0.0005 Sn 0.0003 0.0001
Ta 0.0050 0.0020 Ni 0.0050 0.0030 Ti 0.0050 0.0020
Cu 0.0003 0.0001 Nb 0.0030 0.0010 Cr 0.0050 0.0010
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