Chromium(II) silicide

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| IUPACName = Chromium(2+) silicide

| OtherNames =

|Section1={{Chembox Identifiers

| CASNo = 12018-09-6

| PubChem = 45051936

| EC_number = 234-633-0

| RTECS =

| EINECS = 234-633-0

| ChemSpiderID = 17340236

| SMILES = [Si-]#[Si-].[Cr+2]

| InChI = 1S/Cr.2Si

| InChIKey = CHXGWONBPAADHP-UHFFFAOYSA-N

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|Section2={{Chembox Properties

| Formula = CrSi₂

| MolarMass = 108.167 g/mol

| Appearance = white powder

| Odor = odorless

| Density = 4.91 g/cm³

| MeltingPtC = 1490

| MeltingPt_ref={{cite book | editor= Haynes, William M. | date = 2016| title = CRC Handbook of Chemistry and Physics | edition = 97th | publisher = CRC Press | isbn = 9781498754293|page=4.57}}

| BoilingPt =

| Solubility = insoluble

| SolubleOther =

| BandGap=0.35 eV (indirect){{cite journal|doi=10.1103/PhysRevB.43.12549|title=Electronic structure ofCrSi2and related refractory disilicides|year=1991|last1=Mattheiss|first1=L. F.|journal=Physical Review B|volume=43|issue=15|pages=12549–12555|pmid=9997056|bibcode=1991PhRvB..4312549M}}

| MagSus = −0.5{{e|-6}} emu/g{{cite journal|doi=10.1143/JPSJ.21.555|title=Magnetic Properties of Silicides of Iron Group Transition Elements|year=1966|last1=Shinoda|first1=Daizaburo|last2=Asanabe|first2=Sizuo|journal=Journal of the Physical Society of Japan|volume=21|issue=3|page=555|bibcode=1966JPSJ...21..555S}}

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| Section3 = {{Chembox Structure

| Structure_ref ={{cite journal|doi=10.1063/1.340168|title=Thermal expansion studies of the group IV-VII transition-metal disilicides|year=1988|last1=Engström|first1=Ingvar|last2=Lönnberg|first2=Bertil|journal=Journal of Applied Physics|volume=63|issue=9|pages=4476–4484|bibcode=1988JAP....63.4476E}}

| CrystalStruct = Hexagonal, hP9

| SpaceGroup = P6₂22, No. 180

| PointGroup =

| LattConst_a = 0.44268 nm

| LattConst_c = 0.63751 nm

| LattConst_alpha =

| LattConst_beta =

| LattConst_gamma =

| LattConst_ref =

| LattConst_Comment =

| UnitCellVolume =

| UnitCellFormulas = 3

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| Section4 = {{Chembox Hazards

| MainHazards =

| FlashPt =

| AutoignitionPt =

| PEL = TWA 1 mg/m³{{PGCH|0141}}

| REL = TWA 0.5 mg/m³

| IDLH = 250 mg/m³

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| Section8 = {{Chembox Related

| OtherCations = Molybdenum disilicide
Tungsten disilicide

| OtherCompounds = Chromium(IV) silicide

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Chromium(II) silicide or chromium disilicide is an inorganic compound of chromium and silicon. Its chemical formula is CrSi₂. It is a p-type thermoelectric semiconductor with an indirect bandgap of 0.35 eV.