Iron(III) Hydroxide Precipitation

FeCl3 + 3NaOH → Fe(OH)3↓ + 3NaCl

अवलोकन

Iron(III) chloride reacts with sodium hydroxide to form a rust-brown gelatinous precipitate of iron(III) hydroxide. Fe(OH)₃ has an extremely low Ksp of 2.8 × 10⁻³⁹, precipitating even at slightly acidic pH. The gelatinous nature makes it an excellent flocculant for water treatment.

प्रतिभागी

भूमिका पदार्थ गुणांक अवस्था
अभिकारक Iron(III) Chloride FeCl₃ 1 (aq)
अभिकारक Sodium Hydroxide NaOH 3 (aq)
उत्पाद Sodium Chloride NaCl 3 (aq)

रोजमर्रा का उदाहरण

The rust-colored sludge in water treatment plants is mainly iron(III) hydroxide precipitated by adding base to iron-rich water.

औद्योगिक महत्व

Iron(III) hydroxide precipitation is the primary method for iron removal from drinking water and is used as a coagulant in wastewater treatment.

गुण

प्रकार
Precipitation
प्रतिवर्ती
नहीं
ऊर्जा
ऊष्माक्षेपी
ΔH
-88.0 kJ/mol

संबंधित अभिक्रियाएँ

Barium Carbonate Precipitation Barium Sulfate Precipitation Cadmium Sulfide Precipitation (Yellow) Calcium Fluoride Precipitation (Fluorite) Calcium Phosphate Precipitation (Bone Mineral) Chromium(III) Hydroxide Precipitation Lead Carbonate Precipitation Lead Chloride Precipitation Calcium Carbonate Precipitation Aluminum Hydroxide Precipitation

Frequently Asked Questions

What is the equation for Iron(III) Hydroxide Precipitation?
The balanced equation is: FeCl₃ + 3NaOH → Fe(OH)₃↓ + 3NaCl.
What type of reaction is Iron(III) Hydroxide Precipitation?
Iron(III) Hydroxide Precipitation is a precipitation reaction.
Is Iron(III) Hydroxide Precipitation exothermic or endothermic?
Iron(III) Hydroxide Precipitation is exothermic (releases energy). The enthalpy change (ΔH) is -88.0 kJ/mol.