Aluminum Hydroxide as Amphoteric Base with HCl

Al(OH)3 + 3HCl → AlCl3 + 3H2O

概要

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.

参加者

役割 物質 係数 状態
反応物 Aluminum Hydroxide Al(OH)₃ 1 (s)
反応物 Hydrochloric Acid HCl 3 (aq)
生成物 Water H₂O 3 (l)

日常の例

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

産業上の重要性

水酸化アルミニウムは水の浄化における凝集剤、プラスチック中の難燃剤、そして医薬品の制酸剤として使用されています。

特性

タイプ
Acid-Base
可逆的
いいえ
エネルギー
発熱性
ΔH
-170.0 kJ/mol

関連する反応

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.