hydrogen carbonate-18O3 | 500215-70-3

• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 各种混合金属/非金属
• 英文名称: hydrogen carbonate-18O3
• CAS: 500215-70-3
• 化学式: CHO₃
• 分子量: 67.0189
• InChiKey: BVKZGUZCCUSVTD-PGVNZGOUSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  -1.11
• 重原子数：
  4.0
• 可旋转键数：
  0.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  60.36
• 氢给体数：
  1.0
• 氢受体数：
  2.0

反应信息

• 作为产物：
  描述：

  、 重氧水 以 水 为溶剂， 生成 hydrogen carbonate-18O3
  参考文献：
  名称：

  The experimental study of oxygen isotope exchange reaction between dissolved bicarbonate and water

  摘要：

  The rate and equilibrium fractionation factor of oxygen isotope exchange between HCO−3 and H2O were studied at 25, 35, and 45 °C. It was found that the exchange reaction is complete in 8.8 h (5τ) at 25 °C, 2 h at 35 °C, and in less than 1 h at 45 °C. The equilibrium fractionation factor as a function of temperature fits the equation 103 ln α(HCO−3–H20) = (2.92±0.07) (106/T2)−(2.66±0.18). The CO2 produced from rapidly precipitated BaCO3, to trap the HCO−3 ions maintained in isotopic equilibrium with water at CO2 directly equilibrated with the same water at 25 °C. This provides an alternate method for determining the oxygen isotopic composition of water.

  DOI：

  10.1063/1.442897