Iron Reacting with Hydrochloric Acid

Fe + 2HCl → FeCl2 + H2

Aperçu

Iron dissolves in hydrochloric acid to produce iron(II) chloride and hydrogen gas. The reaction proceeds at a moderate rate, producing green iron(II) chloride solution and gas bubbles. Warming the acid or using powdered iron increases the reaction rate significantly.

Participants

Rôle Substance Coefficient État
Réactif Iron Fe 1 (s)
Réactif Hydrochloric Acid HCl 2 (aq)
Produit Hydrogen H 1 (g)

Exemple du quotidien

Steel (iron) structures corroding faster in coastal areas is partly due to the reaction of iron with acidic chloride-containing sea spray.

Importance industrielle

Iron(II) chloride is used as a reducing agent, in water treatment as a flocculant, and in the production of iron-based pigments.

Propriétés

Type
Single Replacement
Réversible
Non
Énergie
Exothermique
ΔH
-89,1 kJ/mol

Réactions associées

Aluminum Reacting with Iron(III) Oxide (Thermite) Chlorine Displacing Iodine from Potassium Iodide Magnesium Reacting with Steam Lithium Reacting with Water Aluminum Reacting with Hydrochloric Acid Aluminum Reducing Chromium Oxide (Aluminothermic) Iron Displacing Copper from Copper Sulfate Zinc Displacing Copper from Copper Sulfate Magnesium Reacting with Hydrochloric Acid Fluorine Displacing Chlorine from Sodium Chloride

Frequently Asked Questions

What is the equation for Iron Reacting with Hydrochloric Acid?
The balanced equation is: Fe + 2HCl → FeCl₂ + H₂.
What type of reaction is Iron Reacting with Hydrochloric Acid?
Iron Reacting with Hydrochloric Acid is a single replacement reaction.
Is Iron Reacting with Hydrochloric Acid exothermic or endothermic?
Iron Reacting with Hydrochloric Acid is exothermic (releases energy). The enthalpy change (ΔH) is -89.1 kJ/mol.