Method for the preparation of p-butoxyphenylacetyl-hydroxamic acid in the finely divided state and a composition containing this acid

摘要

Method for the preparation of micronized p-butoxyphenylacetylhydroxamic acid, comprising dissolving the p-butoxyphenylacetylhydroxamic acid in a basic solution of salifying agent and then precipitating it in an acid solution in the presence of a surface-active agent.