Lead Chloride Precipitation

Pb(NO3)2 + 2NaCl → PbCl2↓ + 2NaNO3

अवलोकन

Lead nitrate reacts with sodium chloride to form a white precipitate of lead chloride (Ksp = 1.7 × 10⁻⁵). PbCl₂ is moderately insoluble at room temperature but becomes quite soluble in hot water, distinguishing it from AgCl. The precipitate consists of fine needle-like crystals.

प्रतिभागी

भूमिका पदार्थ गुणांक अवस्था
अभिकारक Sodium Chloride NaCl 2 (aq)
उत्पाद Sodium Nitrate NaNO₃ 2 (aq)

रोजमर्रा का उदाहरण

In qualitative analysis, PbCl₂ is separated from AgCl and Hg₂Cl₂ by dissolving it in hot water, a key step in Group I cation analysis.

औद्योगिक महत्व

Lead chloride precipitation is important in lead recycling processes and in understanding lead contamination behavior in water treatment.

गुण

प्रकार
Precipitation
प्रतिवर्ती
नहीं
ऊर्जा
ऊष्माक्षेपी
ΔH
-14.0 kJ/mol

संबंधित अभिक्रियाएँ

Aluminum Hydroxide Precipitation 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 Calcium Carbonate Precipitation Iron(III) Hydroxide Precipitation

Frequently Asked Questions

What is the equation for Lead Chloride Precipitation?
The balanced equation is: Pb(NO₃)₂ + 2NaCl → PbCl₂↓ + 2NaNO₃.
What type of reaction is Lead Chloride Precipitation?
Lead Chloride Precipitation is a precipitation reaction.
Is Lead Chloride Precipitation exothermic or endothermic?
Lead Chloride Precipitation is exothermic (releases energy). The enthalpy change (ΔH) is -14.0 kJ/mol.