Constituent HgO | SSHADE

Constituent

Name: HgO
Official name: Mercury(II) oxide

Family: covalent network solid
Class: chain covalent network solid
Compound type: oxide

Constituent abundance in material

Relevance: main - major
Arrangement: single phase
Mass fraction: 1.0
Mole fraction: 1.0

Chemical composition

Formula: $HgO$
Chemical formula: HgO
Elemental formula: (Hg2+) (O2-)
Isotope mixture type: terrestrial abundance

	Formula	Name	Family	Number min-max	Mole fraction	Isotope mole fraction	State	Relevance
	$Hg$	Mercury	element	1	0.5	1	constituent element	main
	$O$	Oxygen	element	1	0.5	1	constituent element	main

Chemical functions and bonds

Chemical bonds

	Bond	Number
	$-Hg-O-$	2
	$-Hg-Hg-$	2

Class: tridimensional covalent networks (11)
Type: one metal and one non-metal (or metalloid) tridimensional networks (11.04)

Phase type: crystalline

Crystallography

Crystal system: orthorhombic
Crystal class: dipyramidal
Crystal class symbol: mmm (D2h)
Crystal spacegroup: Pnma

Texture: polycrystalline

Physical properties

Molar mass: 216.591 $g/mol$
Density: 11.14 $g/cm^3$

Optical properties

Refringence type: biaxial
Refringence sign: positive
Birefringence: 0.28
Refraction index $n_{\alpha}$: 2.37
Refraction index $n_{\beta}$: 2.50
Refraction index $n_{\gamma}$: 2.65
Dispersion V: relatively strong
Color: deep red, orange, brownish red to brown
Diaphaneity: transparent to translucent
Luster: adamantine