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

3NaOH + FeCl3 → Fe(OH)3 + 3NaCl

ภาพรวม

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.

ผู้เข้าร่วม

บทบาท สาร สัมประสิทธิ์ สถานะ
สารตั้งต้น Iron(III) Chloride FeCl₃ 1 (aq)
สารตั้งต้น Sodium Hydroxide NaOH 3 (aq)
ผลิตภัณฑ์ Sodium Chloride NaCl 3 (aq)

ตัวอย่างในชีวิตประจำวัน

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

ความสำคัญทางอุตสาหกรรม

Iron(III) hydroxide is used as a pigment (iron oxide yellow after calcination), in water treatment as a coagulant, and in phosphate removal from wastewater.

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.