Constituent LaF3 | SSHADE

Constituent

Name: LaF3
Official name: Lanthanum trifluoride

Family: ionic solid
Class: normal salt
Compound type: fluoride

Constituent abundance in material

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

Chemical composition

Formula: $LaF_3$
Chemical formula: LaF3
Elemental formula: (La3+) (F-)3
Isotope mixture type: terrestrial abundance

	Formula	Name	Family	Number min-max	Mole fraction	Isotope mole fraction	State	Relevance
	$La^{3+}$	Lanthanum cation	element	1	0.25	1	constituent cation	main
	$F^-$	Fluoride anion	element	3	0.75	1	constituent anion	main

Chemical functions and bonds

Chemical bonds

	Bond	Number
	$\cdot (\cdot) La^{3+} \cdot F^{-}$	3

Class: normal salts (07)
Type: simple normal salts (07.01)

Phase type: crystalline

Crystallography

Crystal system: trigonal
Crystal class: ditrigonal-scalenohedral
Crystal class symbol: -3m (D3d)
Crystal spacegroup: P-3c1

Texture: polycrystalline

Physical properties

Molar mass: 195.9 $g/mol$
Density: 5.9 $g/cm^3$

Optical properties

Refringence type: uniaxial
Refringence sign: negative
Birefringence: 0.006
Refraction index $n_{\alpha}$: 1.609
Refraction index $n_{\beta}$: 1.603
Color: white
Diaphaneity: transparent to translucent
Luster: vitreous