Constituent Ta2O5 | SSHADE

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Constituent

Name: Ta2O5
Official name: beta Tantalum(V) oxide

Family: covalent network solid
Class: pseudometal (semi-conductor)
Compound type: oxide

Constituent abundance in material

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

Chemical composition

Formula: $\beta - Ta_2O_5$
Chemical formula: Ta2O5
Elemental formula: Ta2 O5
Isotope mixture type: terrestrial abundance

	Formula	Name	Family	Number min-max	Mole fraction	Isotope mole fraction	State	Relevance
	$Ta$	Tantalum	element	2	0.2857142857142857	1	constituent element	main
	$O$	Oxygen	element	5	0.7142857142857143	1	constituent element	main

Oxides composition

Oxides

Formula	$Ta_{2}O_{5}$
Mass fraction (%)	100.0

Class: pseudometals (14)
Type: homovalent bilayer pseudometals (14.02)

Phase name: L- or $\beta-Ta_2O_5$
Phase type: crystalline

Crystallography

Crystal system: orthorhombic
Crystal class: pyramidal
Crystal class symbol: mm2 (C2v)
Crystal spacegroup: Pmm2

Texture: polycrystalline

Physical properties

Molar mass: 441.893 $g/mol$
Density: 8.18 $g/cm^3$

Optical properties

Refringence type: biaxial
Refraction index $n_{\alpha}$: 2.275
Color: colorless, white
Diaphaneity: transparent to translucent