Acetals of glyoxal and terephthaldehyde

摘要: A surface active compound comprises at least one lipophilic group and hydrophilic oxyethylated linked together through acetal linkages so that, on acidification of an aqueous medium containing such a compound, rupture permits separation said group, possibly with lipid material associated therewith, from the in which groups remain turn permitting recovery any material, effective elimination phase.