Magnesium silicide
As-grown Mg2Si usually forms black crystals; they are semiconductors with n-type conductivity and have potential applications in thermoelectric generators.In the face-centered cubic lattice Si centers occupy the corners and face-centered positions of the unit cell and Mg centers occupy eight tetrahedral sites in the interior of the unit cell.[2] It can be produced by heating silicon dioxide, SiO2, found in sand, with excess magnesium.[5] Magnesium silicide is used to create aluminium alloys of the 6000 series, containing up to approximately 1.5% Mg2Si.Its as-grown crystal exhibit n-type conductivity, but it can be changed to p-type by doping with Ag, Ga, Sn and possibly Li (at high doping level).
Preferred IUPAC nameCAS NumberChemSpiderECHA InfoCardEC NumberPubChemUN numberCompTox DashboardSMILESChemical formulaMolar massDensityMelting pointSolubility in waterCrystal structureAntifluoriteSpace groupLattice constantFormula unitsOccupational safety and healthsilaneGHS labellingPictogramsHazard statementsPrecautionary statementscationsCalcium silicidestandard stateinorganic compoundmagnesiumsiliconsemiconductorsthermoelectric generatorsface-centered cubicsilicon dioxidemagnesium oxidehydrochloric acidmagnesium chlorideSulfuric acidprotonolysisalkaline earth metalalkali metalsilicidesGuinier-Preston zonesnarrow-gap semiconductorCRC Handbook of Chemistry and PhysicsCRC PressBibcodeMagnesium compoundsMgC2O4MgC6H6O7C12H10Mg3O14C4H8MgN2O4MgC14H10O4Mg(ClO3)2Mg(ClO4)2Mg(HCO3)2Mg(HCO2)2MgHPO4Mg(H2PO4)2Mg(NO3)2Mg(OH)2Mg3(PO4)2MgU2O7Mg2Al3Mg5Ga2Mg2SiO4Mg2Si3O8Mg2(CrO4)2C24H46MgO4silicideSi4−Mn5Si3Fe5Si3more…