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
Calcium Chloride and Sodium Carbonate
Barium Chloride and Sodium Sulfate Precipitation
Calcium Hydroxide and Carbon Dioxide (Limewater Test)
Magnesium Hydroxide and Hydrochloric Acid (Antacid)
Lead Nitrate and Potassium Iodide (Golden Rain)
Copper(II) Sulfate and Sodium Hydroxide
Sodium Hydroxide and Iron(III) Chloride (Rust Color)
Sodium Hydroxide and Hydrochloric Acid Neutralization
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.