Calcium Fluoride Precipitation (Fluorite)

CaCl₂ + 2NaF → CaF₂↓ + 2NaCl

ภาพรวม

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.

ผู้เข้าร่วม

บทบาท	สาร	สัมประสิทธิ์	สถานะ
ผลิตภัณฑ์	Calcium Fluoride CaF₂	1	(s)
ผลิตภัณฑ์	Sodium Chloride NaCl	2	(aq)

ตัวอย่างในชีวิตประจำวัน

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

ความสำคัญทางอุตสาหกรรม

Fluorite is the primary source of fluorine chemicals. It is used as a flux in steelmaking, in the manufacture of hydrofluoric acid, and in optical components.

คุณสมบัติ

ประเภท: Precipitation
ย้อนกลับได้: ไม่
พลังงาน: คายความร้อน
ΔH: -18.0 kJ/mol

ปฏิกิริยาที่เกี่ยวข้อง

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.