Aluminum Hydroxide as Amphoteric Base with HCl

Al(OH)3 + 3HCl → AlCl3 + 3H2O

概述

Aluminum hydroxide dissolves in hydrochloric acid, demonstrating its basic character. As an amphoteric substance, Al(OH)₃ can act as either an acid or a base. With HCl, it donates its hydroxide ions to neutralize the acid. The gelatinous white precipitate dissolves to form a clear solution.

参与者

角色 物质 系数 状态
反应物 Aluminum Hydroxide Al(OH)₃ 1 (s)
反应物 Hydrochloric Acid HCl 3 (aq)
产物 Water H₂O 3 (l)

日常示例

Aluminum hydroxide is the active ingredient in many antacid tablets like Maalox, where it neutralizes stomach acid.

工业重要性

氢氧化铝用作水净化的絮凝剂、塑料中的阻燃剂,以及药用抗酸剂。

属性

类型
Acid-Base
可逆
否
能量
放热
ΔH
-170.0 kJ/mol

相关反应

Hydrochloric Acid and Barium Hydroxide Acetic Acid and Sodium Acetate Buffer System 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) Formic Acid and Sodium Hydroxide

Frequently Asked Questions

What is the equation for Aluminum Hydroxide as Amphoteric Base with HCl?
The balanced equation is: Al(OH)₃ + 3HCl → AlCl₃ + 3H₂O.
What type of reaction is Aluminum Hydroxide as Amphoteric Base with HCl?
Aluminum Hydroxide as Amphoteric Base with HCl is a acid-base reaction.
Is Aluminum Hydroxide as Amphoteric Base with HCl exothermic or endothermic?
Aluminum Hydroxide as Amphoteric Base with HCl is exothermic (releases energy). The enthalpy change (ΔH) is -170.0 kJ/mol.