Calcium Oxalate Precipitation (Kidney Stones)

CaCl2 + Na2C2O4 → CaC2O4↓ + 2NaCl

概述

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.

参与者

角色 物质 系数 状态
反应物 Oxalic Acid C₂H₂O₄ 1 (aq)
产物 Sodium Chloride NaCl 2 (aq)

日常示例

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

工业重要性

理解草酸钙沉淀对肾脏学、食品科学(草酸含量分析)以及啤酒酿造(防止啤酒石)至关重要。

属性

类型
Precipitation
可逆
否
能量
放热
ΔH
-12.0 kJ/mol

相关反应

Aluminum Hydroxide Precipitation Barium Sulfate Precipitation Cadmium Sulfide Precipitation (Yellow) Calcium Phosphate Precipitation (Bone Mineral) Chromium(III) Hydroxide Precipitation Lead Carbonate Precipitation Magnesium Hydroxide Precipitation Copper Sulfide Precipitation Cobalt(II) Hydroxide 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.