To start, try (NH4)CH3COO-, or (NH4)HCO3-. Regarding calculating the pH,
there must be manual around or WebSite for the purpose. I hope it is
helpful (I mean, either one is within your range:)
Martin
norton at ucla.edu
==============
In article <I.McFarlane-2901981502570001 at mac052068.lif.icnet.uk>,
I.McFarlane at icrf.icnet.uk says...
>>Hi, does anyone know of a volatile buffer system that buffers around
pH7.5?
>>TIA,
>>Ian Mc