Iron(III) Chloride and Sodium Hydroxide

FeCl3 + 3NaOH → Fe(OH)3 + 3NaCl

概要

Iron(III) chloride reacts with sodium hydroxide to form a rust-brown precipitate of iron(III) hydroxide and sodium chloride. This reaction is the basis for iron removal in water treatment and for qualitative identification of iron(III) ions.

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 brown sludge in water treatment plants often contains iron(III) hydroxide precipitated by adding a base to iron-containing water.

産業上の重要性

水酸化鉄の沈殿は水道水・廃水処理でリン酸塩・重金属を除去するために利用される。塩化鉄は硫酸アルミニウムよりも広いpH範囲で有効な凝集剤として広く使われる。

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

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 Iron(III) Chloride (Rust Color) 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 Iron(III) Chloride and Sodium Hydroxide?
The balanced equation is: FeCl₃ + 3NaOH → Fe(OH)₃ + 3NaCl.
What type of reaction is Iron(III) Chloride and Sodium Hydroxide?
Iron(III) Chloride and Sodium Hydroxide is a double replacement reaction.
Is Iron(III) Chloride and Sodium Hydroxide exothermic or endothermic?
Iron(III) Chloride and Sodium Hydroxide is exothermic (releases energy). The enthalpy change (ΔH) is -88.0 kJ/mol.