Lanthanum fluorocarbonate | SSHADE

Processing math: 58%

Solid phase

Official name: Lanthanum fluorocarbonate

Name and identifiers

Secondary names: lanthanum(3+);carbonate;fluoride; bastnäsite-(La)

Family: ionic solid
Class: alkali salt
Compound type: carbonate

Chemical composition

Formula: $LaCO_3F$
Chemical formula: LaCO3F
Elemental formula: (La3+) C O (O-)2 (F-)
Isotope mixture type: terrestrial abundance

6.0

	Formula	Name	Family	Number min-max	Mole fraction	Isotope mole fraction	State	Relevance
	$La^{3+}$	Lanthanum cation	element	1	0.3333333333333333	1	constituent cation	main
	$(CO_3)^{2-}$	Carbonate anion	chemical function	1	0.3333333333333333	1	anionic radical	main
	$F^-$	Fluoride anion	element	1	0.3333333333333333	1	constituent anion	main

Chemical functions and bonds

Chemical functions

	Function	Number
	$(CO_3)^{2-}$	1

Chemical bonds

	Bond	Number
	$\cdot (\cdot) La^{3+} \cdot O^{-}-$	2
	$\cdot (\cdot) La^{3+} \cdot F^{-}$	1
	$\dddot - \dddot - C \dddot - O^{-2/3}$	3

Class: alkali salts (06)
Type: double alkali salts (06.02)

Associated phases

Equivalent mineral: Bastnäsite-(La)

Crystallography

Phase type: crystalline
Crystal system: hexagonal
Crystal class: ditrigonal-dipyramidal
Crystal class symbol: -6m2 (D3h)
Crystal spacegroup: P-62m

Physical properties

Molar mass: 217.913 $g/mol$
Density: 4.74 $g/cm^3$

Thermodynamical properties

State NTP: solid

Optical properties

Refringence type: uniaxial
Refringence sign: positive
Birefringence: 0.10
Refraction index $n_{\alpha}$: 1.72
Refraction index $n_{\beta}$: 1.82
Pure color: yellow
Color: honey-yellow, reddish brown
Diaphaneity: transparent to translucent
Luster: vitreous

Links and Publications

Links