Calcium Fluoride Precipitation (Fluorite)

CaCl₂ + 2NaF → CaF₂↓ + 2NaCl

Descripción general

Calcium chloride reacts with sodium fluoride to precipitate calcium fluoride (Ksp = 3.5 × 10⁻¹¹). CaF₂ occurs naturally as the mineral fluorite (fluorspar), which gives fluorescence its name because fluorite was the first substance observed to fluoresce under UV light.

Participantes

Rol	Sustancia	Coeficiente	Estado
Producto	Calcium Fluoride CaF₂	1	(s)
Producto	Sodium Chloride NaCl	2	(aq)

Ejemplo cotidiano

Fluorite crystals glow blue or green under UV light, which is why we call this phenomenon fluorescence, named after this mineral.

Importancia industrial

La fluorita es la principal fuente de compuestos de flúor. Se utiliza como fundente en siderurgia, en la fabricación de ácido fluorhídrico y en componentes ópticos.

Propiedades

Tipo: Precipitation
Reversible: No
Energía: Exotérmico
ΔH: -18,0 kJ/mol

Reacciones relacionadas

Aluminum Hydroxide Precipitation Barium Carbonate Precipitation Barium Sulfate Precipitation Cadmium Sulfide Precipitation (Yellow) Calcium Phosphate Precipitation (Bone Mineral) Chromium(III) Hydroxide Precipitation Lead Carbonate Precipitation Lead Chloride Precipitation Calcium Carbonate Precipitation Iron(III) Hydroxide Precipitation

Frequently Asked Questions

What is the equation for Calcium Fluoride Precipitation (Fluorite)?

The balanced equation is: CaCl₂ + 2NaF → CaF₂↓ + 2NaCl.

What type of reaction is Calcium Fluoride Precipitation (Fluorite)?

Calcium Fluoride Precipitation (Fluorite) is a precipitation reaction.

Is Calcium Fluoride Precipitation (Fluorite) exothermic or endothermic?

Calcium Fluoride Precipitation (Fluorite) is exothermic (releases energy). The enthalpy change (ΔH) is -18.0 kJ/mol.