Barium Sulfate Precipitation

BaCl2 + Na2SO4 → BaSO4↓ + 2NaCl

개요

Barium chloride reacts with sodium sulfate to form an extremely insoluble white precipitate of barium sulfate (Ksp = 1.1 × 10⁻¹⁰). BaSO₄ is so insoluble that it is safe to ingest for medical imaging despite barium's toxicity. The precipitate forms instantly as a dense, finely divided white solid.

참여 물질

역할 물질 계수 상태
반응물 Sodium Sulfate Na₂SO₄ 1 (aq)
생성물 Barium Sulfate BaSO₄ 1 (s)
생성물 Sodium Chloride NaCl 2 (aq)

일상 속 예시

Barium sulfate is the white liquid (barium meal) patients drink before gastrointestinal X-rays to make the digestive tract visible.

산업적 중요성

BaSO₄는 방사선 조영제, 페인트의 백색 안료(블랑 픽스), 유정 굴착 이수, 그리고 플라스틱과 종이의 충전재로 사용됩니다.

성질

유형
Precipitation
가역 반응
아니오
에너지
발열
ΔH
-24.5 kJ/mol

관련 반응

Aluminum Hydroxide Precipitation Barium Carbonate Precipitation Cadmium Sulfide Precipitation (Yellow) Calcium Fluoride Precipitation (Fluorite) 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 Barium Sulfate Precipitation?
The balanced equation is: BaCl₂ + Na₂SO₄ → BaSO₄↓ + 2NaCl.
What type of reaction is Barium Sulfate Precipitation?
Barium Sulfate Precipitation is a precipitation reaction.
Is Barium Sulfate Precipitation exothermic or endothermic?
Barium Sulfate Precipitation is exothermic (releases energy). The enthalpy change (ΔH) is -24.5 kJ/mol.