TAPSO is used to make
buffer solution
A buffer solution (more precisely, pH buffer or hydrogen ion buffer) is an aqueous solution consisting of a mixture of a weak acid and its conjugate base, or vice versa. Its pH changes very little when a small amount of strong acid or base is ...
s. It has a
pKa value of 7.635 (I=0, 25°C).
It can be used to make buffer solutions in the
pH range 7.0-8.2.
References
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Buffer solutions