Barium Sulfate Precipitation

BaCl₂ + Na₂SO₄ → BaSO₄↓ + 2NaCl

Visão geral

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.

Participantes

Papel	Substância	Coeficiente	Estado
Reagente	Sodium Sulfate Na₂SO₄	1	(aq)
Produto	Barium Sulfate BaSO₄	1	(s)
Produto	Sodium Chloride NaCl	2	(aq)

Exemplo do cotidiano

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

Importância industrial

O BaSO₄ é utilizado como agente radiopaco, como pigmento branco (blanc fixe) em tintas, em lamas de perfuração de poços de petróleo e como carga em plásticos e papel.

Propriedades

Tipo: Precipitation
Reversível: Não
Energia: Exotérmico
ΔH: -24,5 kJ/mol

Reações relacionadas

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.