Re-evaluation of the Second Stoichiometric Dissociation Constants of Phosphoric Acid at Temperatures from (0 to 60) °C in Aqueous Buffer Solutions with or without NaCl or KCl. 1. Estimation of the Parameters for the Hückel Model Activity Coefficient Equations

2005 ◽  
Vol 50 (5) ◽  
pp. 1502-1509 ◽  
Author(s):  
Jaakko I. Partanen ◽  
Arthur K. Covington
Keyword(s):  
Activity Coefficient ◽  
Phosphoric Acid ◽  
Dissociation Constants ◽  
Aqueous Buffer ◽  
Buffer Solutions

Acids, bases and buffer solutions

2018 ◽  
Author(s):  
Dennis Sherwood ◽  
Paul Dalby
Keyword(s):  
First Principles ◽  
Buffer Capacity ◽  
Unique Feature ◽  
Dissociation Constants ◽  
Equilibrium Composition ◽  
Buffer Solutions ◽  
Acid And Base ◽  
Water Ph ◽  
Acids And Bases ◽  
Conjugate Bases

Many reactions in solution involve acids and bases, and so this chapter examines these important reactions in detail. Topics covered include the ionisation of water, pH, pOH, acids and bases, conjugate acids and conjugate bases, acid and base dissociation constants, the Henderson-Hasselbalch equation, the Henderson-Hasselbalch approximation, buffer solutions and buffer capacity. A unique feature of this chapter is a ‘first principles’ analysis of how a reaction buffered at a particular pH achieves an equilibrium composition different from that of the same reaction taking place in an unbuffered solution. This introduces some concepts which are important in understanding the biochemical standard state, as required for Chapter 23.

Conjugation of 4-(dimethylamino)pyridine to primary amines in aqueous buffer solutions using an N-hydroxysuccinimide ester reagent

2021 ◽  
Vol 81 ◽  
pp. 153343
Author(s):  
Saki Horie ◽  
Hikaru Fujita ◽  
Rina Yamashita ◽  
Munetaka Kunishima
Keyword(s):  
Primary Amines ◽  
Aqueous Buffer ◽  
Buffer Solutions
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