Magnesium oxide

From Academic Kids

Properties

Magnesium oxide crystals - SEM image (1350x)

General

Name Magnesium oxide
Chemical formula MgO
Appearance White solid

Physical

Formula weight 40.30 g/mol
Melting point 3073 K (2800 °C)
Boiling point 3873 K (3600 °C)
Density 3.58 kg/dm3
Crystal structure Cubic FCC
Solubility 0.00062 g in 100 g water

Thermochemistry

ΔfH0liquid  ? kJ/mol
ΔfH0solid  ? kJ/mol
S0solid  ? J/(mol·K)

Misc.

Thermal conductivity 42 W m-1 K-1 at 0 C
Coefficient of thermal expansion 10.8 ×10-6/K at 0 C
Specific heat capacity 877 J kg-1 K-1
Dielectric constant 9.65 at 1 MHz
Young's modulus 250 GPa
Shear Modulus 155 GPa
Bulk modulus 155 GPa
Poisson's ratio 0.18

Safety

Ingestion No known effect.
Inhalation Causes irritation of upper respiratory tract.
Skin Causes irritation.
Eyes Causes irritation.

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.


Template:Inorganic-compound-stubca:xid de magnesi da:Magnesiumoxid de:Magnesiumoxid nl:Magnesiumoxide pl:Tlenek magnezu ru:Жжёная магнезия

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