Aluminium diboride: Difference between revisions

| OtherNames = aluminium boride<br>aluminum diboride

| Section1 = {{Chembox Identifiers

| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}

| EINECS = 234-923-7

| SMILES = B1=B[Al]1

| Section2 = {{Chembox Properties

| Formula = AlB₂

| MolarMass = 48.604 g/mol<ref name=b92>{{RubberBible92nd|page=4.45}}</ref>

| Appearance = Copper-red solid

| Density = 3.19 g/cm³³<ref name=b92/>

| BoilingPt =

| Solubility = Insoluble in waterinsoluble

| Section3 = {{Chembox Structure

| CrystalStruct = Hexagonal, [[Pearson symbol|hP3]]

| SpaceGroup = P6/mmm, No. 191

| Section7 = {{Chembox Hazards

| MainHazards =

| FlashPt =

| AutoignitionAutoignitionPt =

'''Aluminium diboride''' (AlB₂) is a [[chemical compound]] made from the metal [[aluminium]] and the non-metal[[metalloid]] [[boron]]. It is one of two compounds of aluminium and boron, the other being [[aluminium dodecaboride|AlB₁₂]], thatwhich are both commonly referred to as aluminium boride.

Structurally the B atoms form [[graphite]] -like sheets with Al atoms between them, and this is very similar to the structure of [[magnesium diboride]]. Single crystals of AlB₂ exhibit metallic conductivity along the axis parallel to the basal hexagonal plane.<ref>{{cite "journal|title=On the electronic and structural properties of aluminumaluminium diboride Al_0.9B₂"|journal=Journal of Solid State Chemistry |volume=177 |issue=2 |pages=389 |doi=10.1016/j.jssc.2002.12.001 |year=2004 |last1=Burkhardt, Ulrich;|first1=U |last2=Gurin, |first2=Vladimir; |last3=Haarmann, |first3=Frank; |last4=Borrmann, |first4=Horst; |last5=Schnelle, |first5=Walter; |last6=Yaresko, |first6=Alexander; |last7=Grin, |first7=Yuri [http://dx|bibcode=2004JSSCh.doi177.org/10.1016/j.jssc.2002.12.001389B Journal of Solid State Chemistry 177 (2004) 389-394]}}</ref>

Aluminium boride is considered a hazardous substance as it reacts with [[acid]]s and [[hydrogen]] gas to produce toxic gases. For example, it reacts with hydrochloric acid to release [[borane]] and [[aluminium chloride]].

*[[borideBoride]]