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On the use of dimensionless parameters in acid‐base theory. II. The molar buffer capacities of bivalent weak acids and bases
Author(s) -
Rilbe Harry
Publication year - 1993
Publication title -
electrophoresis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.666
H-Index - 158
eISSN - 1522-2683
pISSN - 0173-0835
DOI - 10.1002/elps.1150140133
Subject(s) - bivalent (engine) , dimensionless quantity , buffer (optical fiber) , chemistry , acid–base reaction , molar , molar ratio , phosphate buffered saline , chromatography , thermodynamics , biochemistry , catalysis , organic chemistry , computer science , physics , biology , telecommunications , metal , paleontology
It is shown that stoichiometric rather than thermodynamic dissociation constants can and should be used in the buffer capacity theory. The mean valence of bivalent weak acids and bases is deduced in a form with dimensionless parameters. The expressions for the molar buffer capacities of bivalent weak acids and bases are identical with that for a bivalent ampholyte, and the theory for the latter given earlier is thus valid in all details for bivalent weak acids and bases.