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Citation: QIAO Cheng-Li. The Ringbom Equation for the Titration Curve of Diprotic Weak Acid by Monoprotic Base and pH_sp Calculation[J]. University Chemistry, ;2016, 31(2): 29-33. doi: 10.3866/PKU.DXHX20160229 shu

The Ringbom Equation for the Titration Curve of Diprotic Weak Acid by Monoprotic Base and pH_sp Calculation

QIAO Cheng-Li ^,

1.
School of Applied Technology, Qiqihar University, Qiqihar 161006, Heilongjiang Province, P. R. China

Corresponding author: QIAO Cheng-Li,

The Ringbom equation for the titration curve of diprotic weak acid by monoprotic base was developed based on the proton balance equation, the mass balance equation, the side reaction coefficient, and the conditional stability constant.The calculation formulas for the first(pH_sp₁) and the second(pH_sp₂) stoichiometric point were deduced subsequently.
- Acid-base titration,
- Side reaction coefficient,
- Conditional stability constant,
- Titration curve equation
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通讯作者: 陈斌, bchen63@163.com

The Ringbom Equation for the Titration Curve of Diprotic Weak Acid by Monoprotic Base and pH_sp Calculation