Organic acids produced by self-sustaining coacervates in presence of p-nitroaniline and p-phenylene-diamine.

Oleic and malonic acids were found in control samples while p-nitroaniline addition induced production of tricarballylic acid in eight and twelve days exposed samples. Fumaric and citric acids were found in sporadic instances. Addition of p-phenylene diamine to the mixture showed a degeneration process in organic acid production. In some cases production of fumaric acid was positive.