Iron(III) Chloride and Sodium Hydroxide

FeCl3 + 3NaOH → Fe(OH)3 + 3NaCl

Übersicht

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.

Teilnehmer

Rolle Substanz Koeffizient Zustand
Reaktant Iron(III) Chloride FeCl₃ 1 (aq)
Reaktant Sodium Hydroxide NaOH 3 (aq)
Produkt Sodium Chloride NaCl 3 (aq)

Alltägliches Beispiel

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

Industrielle Bedeutung

Iron hydroxide precipitation is used in water and wastewater treatment for removing phosphates, heavy metals, and suspended solids. Iron(III) chloride is a major flocculant.

Eigenschaften

Typ
Double Replacement
Reversibel
Nein
Energie
Exotherm
ΔH
-88,0 kJ/mol

Verwandte Reaktionen

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.