Sodium Hydroxide and Iron(III) Chloride (Rust Color)

3NaOH + FeCl3 → Fe(OH)3 + 3NaCl

Übersicht

When sodium hydroxide is added to iron(III) chloride solution, a characteristic rust-brown precipitate of iron(III) hydroxide forms. This gelatinous precipitate is used to identify iron(III) ions in qualitative analysis.

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 rust-colored sludge in water treatment plants is often iron(III) hydroxide formed by adding base to iron-containing water.

Industrielle Bedeutung

Iron(III) hydroxide is used as a pigment (iron oxide yellow after calcination), in water treatment as a coagulant, and in phosphate removal from wastewater.

Eigenschaften

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

Verwandte Reaktionen

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