Zinc oxide

Chemical FormulaZnO
Molecular Weight81.38 g/mol
AppearanceWhite powder
Density5.606 g/cm³
Melting Point1,975°C (3,587°F)
Boiling PointSublimes at ~1,800°C (3,272°F)
SolubilityInsoluble in water, soluble in acids
Crystal StructureHexagonal (Wurtzite)
Refractive Index2.004–2.029
Hardness4.5 on Mohs scale
Thermal Conductivity50 W/m·K
Electrical Conductivity10^-10 to 10^-13 S/m (at room temperature)
Band Gap3.37 eV
CAS Number1314-13-2
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