Calcium Fluoride Precipitation (Fluorite)

CaCl2 + 2NaF → CaF2↓ + 2NaCl

개요

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.

참여 물질

역할 물질 계수 상태
생성물 Calcium Fluoride CaF₂ 1 (s)
생성물 Sodium Chloride NaCl 2 (aq)

일상 속 예시

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

산업적 중요성

형석은 불소 화학물질의 주요 원료입니다. 제강 공정의 융제, 불화수소산 제조, 그리고 광학 부품에 사용됩니다.

성질

유형
Precipitation
가역 반응
아니오
에너지
발열
ΔH
-18.0 kJ/mol

관련 반응

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.