플루오린화칼슘 침전 (형석)

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 플루오린화칼슘 CaF₂ 1 (s)
생성물 염화나트륨 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.

자주 묻는 질문

What is the equation for 플루오린화칼슘 침전 (형석)?
The balanced equation is: CaCl₂ + 2NaF → CaF₂↓ + 2NaCl.
What type of reaction is 플루오린화칼슘 침전 (형석)?
플루오린화칼슘 침전 (형석) is a 침전 reaction.
Is 플루오린화칼슘 침전 (형석) exothermic or endothermic?
플루오린화칼슘 침전 (형석) is exothermic (releases energy). The enthalpy change (ΔH) is -18.0 kJ/mol.