The Acidity Function of Perchloric Acid in Aqueous Acetic Acid

H0 And Related Indicator Acidity Function

“…The influence of water on H0 in acetic acid solutions has been investigated for several situations. For solutions which contain a constant concentration of 0.001 M perchloric acid, addition of water causes a large decrease in acidity, since H0 goes from -1.00 to +1.93 as the water content increases from 0 to 5 per cent (67). Somewhat similar results are shown for studies of phosphoric acid (concentrations ranging up to 15 per cent) in acetic acid solutions containing up to 6 per cent water (57) , 9 Finally, a study is available of both 1 molal and 0.01 normal sulfuric acid in solutions ranging from pure water to pure acetic acid (76).…”

Aspects of the chemistry of halophenols and halodienones

“…t o bc available for brornination of 2,6-di-r-butyl-4-methylrecently, Volod'kin and coworkers"' established that 4-bromo-2,6-di-r-butyl-4-cyanomethyl-2.5-dicnone when left as a solid for 20-30 days at room tempcrature loses hydrogcn bromide t o give the quinonc methide (equation49). In this cxample, thc * ""'73'"" helps t o makc thc compound lcss subject t o further reaction.…”