Barium Sulfate Precipitation

BaCl2 + Na2SO4 → BaSO4↓ + 2NaCl

Übersicht

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.

Teilnehmer

Rolle Substanz Koeffizient Zustand
Reaktant Sodium Sulfate Na₂SO₄ 1 (aq)
Produkt Barium Sulfate BaSO₄ 1 (s)
Produkt Sodium Chloride NaCl 2 (aq)

Alltägliches Beispiel

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

Industrielle Bedeutung

BaSO₄ is used as a radiocontrast agent, as a white pigment (blanc fixe) in paints, in oil well drilling mud, and as a filler in plastics and paper.

Eigenschaften

Typ
Precipitation
Reversibel
Nein
Energie
Exotherm
ΔH
-24,5 kJ/mol

Verwandte Reaktionen

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.