抄録
The effect of the combined acid on the direct titration of the salts of organic bases and inorganic or organic acids with perchioric acid in glacial acetic acid was comparatively examined by the titration curves obtained by the potentiometric titration of the salt of diphenhydramine and various acids with glass-calomel electrode. It was thereby found that the order of the strength of the acids in glacial acetic acid was almost equal to their strength in aqueous solution. It may be concluded that weak acids with dissociation constants below 10-3 would be almost without effect on the titration but stronger acids would lower the measurement accuracy.
