Uranium Mononitride

Uranium Mononitride

Compound Uranium Mononitride
Synonyms
Formula UN
Molecular Formula NU
Molecular Weight 252.036
CAS RN: 25658-43-9
Properties dark gray; fcc, a = 0.4890 nm; electrical resistivity 176 mohm·cm; Knoop hardness 580; only stable uranium nitride above 1300°C; formed by reacting uranium and nitrogen; there are two other nitrides, UN1.5, 12033-85-1, and UN1.75, 1226620-20-5 [KIR83] [KIR81]
Solubility
Density, g/cm³: 14.4 [KIR81]
Melting point, °C 2800 [CIC73]
Boiling point, °C
Reactions:
Thermal Conductivity, W/(m·K) 15.5 [KIR81]
Thermal Expansion Coefficient 8.0 x 10ˉ6 [KIR81]

 

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