Acid-base reactions in nitromethane

1.	Study has been made of electrode systems in nitromethane. Constancy of the liquid potential has been proved for certain reference electrodes. The glass electrode has been shown to have a hydrogen function in nitromethane solutions.
2.	Buffer solutions based on picric acid and its salts, diphenylguanidine picrate and tetrabutylammonium picrate, have been used to calibrate electrode pairs. Dissociation constants for these salts have been determined, spectrophotometrically and conductometrically. The buffer solution pH's have been calculated, allowance being made for incomplete salt dissociation.