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

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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.