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

3NaOH + FeCl3 → Fe(OH)3 + 3NaCl

概要

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.

参加者

役割 物質 係数 状態
反応物 Iron(III) Chloride FeCl₃ 1 (aq)
反応物 Sodium Hydroxide NaOH 3 (aq)
生成物 Sodium Chloride NaCl 3 (aq)

日常の例

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

産業上の重要性

水酸化鉄(III)は顔料（焼成後の酸化鉄イエロー）、水処理の凝集剤、排水からのリン酸塩除去に使用される。

特性

タイプ
Double Replacement
可逆的
いいえ
エネルギー
発熱性
ΔH
-88.0 kJ/mol

関連する反応

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.