Iron(III) Chloride and Sodium Hydroxide

FeCl3 + 3NaOH → Fe(OH)3 + 3NaCl

Visão geral

Iron(III) chloride reacts with sodium hydroxide to form a rust-brown precipitate of iron(III) hydroxide and sodium chloride. This reaction is the basis for iron removal in water treatment and for qualitative identification of iron(III) ions.

Participantes

Papel Substância Coeficiente Estado
Reagente Iron(III) Chloride FeCl₃ 1 (aq)
Reagente Sodium Hydroxide NaOH 3 (aq)
Produto Sodium Chloride NaCl 3 (aq)

Exemplo do cotidiano

The brown sludge in water treatment plants often contains iron(III) hydroxide precipitated by adding a base to iron-containing water.

Importância industrial

A precipitação de hidróxido de ferro é utilizada no tratamento de água e de águas residuais para a remoção de fósforo, arsénio e outros contaminantes. O Fe(OH)₃ é um floculante eficaz para a remoção de partículas em suspensão.

Propriedades

Tipo
Double Replacement
Reversível
Não
Energia
Exotérmico
ΔH
-88,0 kJ/mol

Reações relacionadas

Ammonia and Hydrochloric Acid (White Smoke) Calcium Carbonate and Hydrochloric Acid Calcium Chloride and Sodium Carbonate Barium Chloride and Sodium Sulfate Precipitation Calcium Hydroxide and Carbon Dioxide (Limewater Test) Sodium Hydroxide and Iron(III) Chloride (Rust Color) Sodium Hydroxide and Hydrochloric Acid Neutralization Potassium Hydroxide and Sulfuric Acid Sodium Carbonate and Hydrochloric Acid Aluminum Hydroxide and Hydrochloric Acid

Frequently Asked Questions

What is the equation for Iron(III) Chloride and Sodium Hydroxide?
The balanced equation is: FeCl₃ + 3NaOH → Fe(OH)₃ + 3NaCl.
What type of reaction is Iron(III) Chloride and Sodium Hydroxide?
Iron(III) Chloride and Sodium Hydroxide is a double replacement reaction.
Is Iron(III) Chloride and Sodium Hydroxide exothermic or endothermic?
Iron(III) Chloride and Sodium Hydroxide is exothermic (releases energy). The enthalpy change (ΔH) is -88.0 kJ/mol.