Cobalt monosilicide

{{chembox

| Verifiedfields = changed

| Watchedfields = changed

| verifiedrevid =

| ImageFile=MnSi lattice.png

| ImageCaption = Structures of left-handed and right-handed CoSi crystals (3 presentations, with different numbers of atoms per unit cell)

| IUPACName = Cobalt silicide

| OtherNames =

|Section1={{Chembox Identifiers

| CASNo =

| CASNo_Ref = {{cascite|correct|CAS}}

| PubChem = 11182570

| InChI =1S/Co.Si

| InChIKey =XWHPIFXRKKHEKR-UHFFFAOYSA-N

| SMILES =[Si].[Co]

| ChemSpiderID =

| ChemSpiderID_Ref =

}}

|Section2={{Chembox Properties

| Formula = CoSi

| MolarMass = 87.018 g/mol

| Appearance =

| Density = 6.3 g/cm³

| MeltingPtK = 1688

| MeltingPt_ref ={{cite book|last1=Gas|first1=P.|last2=d’Heurle|first2=F. M.|chapter=Diffusion in silicides|volume=33A|year=1998|pages=1–38|doi=10.1007/10426818_13|title=Landolt-Börnstein - Group III Condensed Matter|editor=Beke, D. L.|publisher=Springer |isbn=3-540-60964-4 }}

| BoilingPt =

| Solubility =

| MagSus = {{val|-0.44e-6}} emu/g

| ThermalConductivity =20 W/(m·K){{cite journal |last1=Dutta |first1=Paromita |last2=Pandey |first2=Sudhir K |title=Effects of correlations and temperature on the electronic structures and related physical properties of FeSi and CoSi: a comprehensive study |journal=Journal of Physics: Condensed Matter |date=10 April 2019 |volume=31 |issue=14 |pages=145602 |doi=10.1088/1361-648X/aafdce |pmid=30634173 |bibcode=2019JPCM...31n5602D |s2cid=58668682 }}

}}

|Section3={{Chembox Structure

| CrystalStruct = Cubic

| SpaceGroup = P2₁3 (No. 198), cP8

| LattConst_a = 0.4444(1) nm

| UnitCellFormulas = 4

}}

|Section7={{Chembox Hazards

| ExternalSDS =

| MainHazards =

| FlashPt = Non-flammable

}}

|Section8={{Chembox Related

| OtherAnions =Cobalt germanide

| OtherCations =Iron silicide
Manganese monosilicide

| OtherCompounds =Cobalt disilicide

}}

}}

Cobalt monosilicide (CoSi) is an intermetallic compound, a silicide of cobalt. It is a diamagnetic semimetal with an electrical resistivity of around 1 mΩ·cm.