Inhibitor-containing acid cleaning compositions and processes

摘要: Acid cleaning compositions containing an inhibitor for metal surfaces, processes surfaces therewith, and concentrates useful in forming the acid compositions. The present contain acid, a Mannich base, thiourea, alkyl trimethyl ammonium halide and/or (C8 -C9) phenoxypolyethoxy ethanol, nonionic surfactant which is condensate of poly(oxyethylene) poly(oxypropylene) groups.