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Citation: QIAO Cheng-Li, LI Wen-Xin. Accurate Titration of Polyprotic Acids[J]. University Chemistry, ;2016, 31(9): 98-102. doi: 10.3866/PKU.DXHX201510017 shu

Accurate Titration of Polyprotic Acids

QIAO Cheng-Li ^1, ,
LI Wen-Xin ²

1.
School of Applied Technology, Qiqihar University, Qiqihar 161006, Heilongjiang Province, P. R. China;
2.
The 29th Middle School of Qiqihar City, Qiqihar 161002, Heilongjiang Province, P. R. China

Using the Ringbom equation for titration of dibasic acids, the first and second titration jumps were derived. As followed, the accurate conditions for sequential titration of dibasic weak acids were derived with the first and second titration jumps. And the deduction is also applied to titration of polyprotic acids.
- Polyprotic acid titration,
- Titration jump,
- Titration curve equation
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