Magnesium Hydroxide and Hydrochloric Acid (Milk of Magnesia)

Mg(OH)₂ + 2HCl → MgCl₂ + 2H₂O

Aperçu

Magnesium hydroxide (milk of magnesia) neutralizes hydrochloric acid to form magnesium chloride and water. As a sparingly soluble base, magnesium hydroxide provides sustained acid neutralization without causing rebound acidity. It works gradually as the solid slowly dissolves and reacts.

Participants

Rôle	Substance	Coefficient	État
Réactif	Magnesium Hydroxide Mg(OH)₂	1	(s)
Réactif	Hydrochloric Acid HCl	2	(aq)
Produit	Water H₂O	2	(l)

Exemple du quotidien

Milk of magnesia is a common over-the-counter antacid and laxative, its white milky appearance coming from suspended magnesium hydroxide particles.

Importance industrielle

Magnesium hydroxide is used as an antacid, fire retardant in plastics, and in wastewater treatment for heavy metal precipitation and pH adjustment.

Propriétés

Type: Acid-Base
Réversible: Non
Énergie: Exothermique
ΔH: -108,0 kJ/mol

Réactions associées

Acetic Acid Dissociation in Water Ammonia and Hydrochloric Acid Ascorbic Acid and Sodium Hydroxide Barium Hydroxide and Ammonium Thiocyanate (Endothermic) Carbonic Acid and Sodium Hydroxide Aluminum Hydroxide as Amphoteric Acid with NaOH Aluminum Chloride and Chloride Ion (Lewis Acid-Base) Hydrochloric Acid and Sodium Hydroxide Neutralization Nitric Acid and Potassium Hydroxide Neutralization Hydrochloric Acid and Barium Hydroxide

Frequently Asked Questions

What is the equation for Magnesium Hydroxide and Hydrochloric Acid (Milk of Magnesia)?

The balanced equation is: Mg(OH)₂ + 2HCl → MgCl₂ + 2H₂O.

What type of reaction is Magnesium Hydroxide and Hydrochloric Acid (Milk of Magnesia)?

Magnesium Hydroxide and Hydrochloric Acid (Milk of Magnesia) is a acid-base reaction.

Is Magnesium Hydroxide and Hydrochloric Acid (Milk of Magnesia) exothermic or endothermic?

Magnesium Hydroxide and Hydrochloric Acid (Milk of Magnesia) is exothermic (releases energy). The enthalpy change (ΔH) is -108.0 kJ/mol.