Maleic acid-based aqueous cleaning compositions and methods of using same

摘要

Aqueous cleaning compositions for removing limescale on hard surfaces, especially metal surfaces, are disclosed which comprise a surfactant or mixtures thereof, an acid with its first pKa not exceeding 5, or mixtures thereof, and maleic acid in a weight ratio of maleic acid to said acid such that the surface safety is improved. Said compositions are particularly suitable to be used in the bathrooms and in the kitchens or for descaling appliances.