Dissociation constants of phosphorus monothioacids in absolute ethanol and nitromethane

Abstract

1. The method of potentiometric titration in transfer circuits was used to determine the dissociation constants of phosphorus monothioacids ABPSOH in abs. ethanol and nitromethane at 25°. In these solvents the thione-thiol equilibrium is shifted toward the thione forms. 2. The differentiating effect of nitromethane on the strength of the studied phosphorus monothioacids was established.