Calcium Oxalate Precipitation (Kidney Stones)

CaCl2 + Na2C2O4 → CaC2O4↓ + 2NaCl

概要

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.

参加者

役割 物質 係数 状態
反応物 Oxalic Acid C₂H₂O₄ 1 (aq)
生成物 Sodium Chloride NaCl 2 (aq)

日常の例

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

産業上の重要性

シュウ酸カルシウム沈殿の理解は、腎臓学、食品科学(シュウ酸含有量分析)、そしてビール醸造(ビアストーン防止)において重要です。

特性

タイプ
Precipitation
可逆的
いいえ
エネルギー
発熱性
ΔH
-12.0 kJ/mol

関連する反応

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.