Calcium Oxalate Precipitation (Kidney Stones)

CaCl2 + Na2C2O4 → CaC2O4↓ + 2NaCl

Übersicht

Calcium chloride reacts with sodium oxalate to form a white precipitate of calcium oxalate (Ksp = 2.3 × 10⁻⁹). Calcium oxalate is the primary component of approximately 80% of kidney stones. The monohydrate form (whewellite) is thermodynamically favored and forms the hardest, most painful stones.

Teilnehmer

Rolle Substanz Koeffizient Zustand
Reaktant Oxalic Acid C₂H₂O₄ 1 (aq)
Produkt Sodium Chloride NaCl 2 (aq)

Alltägliches Beispiel

Most kidney stones are calcium oxalate crystals. Foods high in oxalate (spinach, rhubarb, almonds) can increase stone risk.

Industrielle Bedeutung

Understanding calcium oxalate precipitation is critical in nephrology, food science (oxalate content analysis), and in beer brewing (beer stone prevention).

Eigenschaften

Typ
Precipitation
Reversibel
Nein
Energie
Exotherm
ΔH
-12,0 kJ/mol

Verwandte Reaktionen

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 Lead Chloride Precipitation Iron(III) Hydroxide Precipitation

Frequently Asked Questions

What is the equation for Calcium Oxalate Precipitation (Kidney Stones)?
The balanced equation is: CaCl₂ + Na₂C₂O₄ → CaC₂O₄↓ + 2NaCl.
What type of reaction is Calcium Oxalate Precipitation (Kidney Stones)?
Calcium Oxalate Precipitation (Kidney Stones) is a precipitation reaction.
Is Calcium Oxalate Precipitation (Kidney Stones) exothermic or endothermic?
Calcium Oxalate Precipitation (Kidney Stones) is exothermic (releases energy). The enthalpy change (ΔH) is -12.0 kJ/mol.