Manganese (II) Oxide
MnO

Properties

 

Molar mass

70.9374 g/mol

Appearance

dark green crystals

Density

5.43 g/cm3

Melting point

1945 C

Solubility in water

insoluble

Solubility

soluble in acid

Refractive index (nD)

2.16

Structure

 

Crystal structure

Halite (cubic), cF8

Space group

Fm3m, No. 225

Coordination

Octahedral (Mn2+);
Octahedral (O2-)

Lattice constant

4.43 Å

Std enthalpy of formation  fH 298

-385 kJ . K -1[1]

Standard molar entropy S 298

60 J . mol-1 . K-1[1]