magnesium oxide

Other Definitions
magnesium oxide (dict)

font size="+1">Properties
colspan=2 \| Magnesium oxide crystals - SEM image (1350x)
colspan="2" align=center bgcolor="#FFDEAD"\| General
Name	Magnesium oxide
Chemical formula	Mg O
Appearance	White solid
colspan="2" align="center" bgcolor="#FFDEAD" \| Physical
Formula weight	40.30 g/mol
Melting point	3073 K (2800 °C)
Boiling point	3873 K (3600 °C)
Density	3.58 ×10³ kg/m³
Crystal structure	Cubic FCC
Solubility	0.00062 g in 100 g water
colspan="2" align="center" bgcolor="#FFDEAD" \| Thermochemistry
Δ_fH⁰_liquid	? kJ/mol
Δ_fH⁰_solid	? kJ/mol
S⁰_solid	? J/(mol·K)
colspan="2" align="center" bgcolor="#FFDEAD" \| Misc.
Thermal conductivity	42 W m^-1K^-1 at 273 K
Coefficient of thermal expansion	10.8 ×10^-6/K at 273 K
Specific heat capacity	877 J kg^-1 K^-1
Dielectric constant	9.65 at 1 MHz
Young's modulus	250 G Pa
Shear Modulus	155 GPa
Bulk modulus	155 GPa
Poisson's ratio	0.18
colspan="2" align="center" bgcolor="#FFDEAD" \| Safety
Ingestion	No known effect.
Inhalation	Causes irritation of upper respiratory tract.
Skin	Causes irritation.
Eyes	Causes irritation.
colspan="2" align="center" bgcolor="#FFDEAD" \| SI units were used where possible. Unless otherwise stated, standard conditions were used. Disclaimer and references

Magnesium oxide is a white solid mineral that occurs naturally as periclase and is a source of magnesium. See also oxide.

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