Abstract: An acidic bathroom and/or multi-purpose cleaner providing corrosion protection in the absence of a corrosion inhibitor when present in a metal container, such as an aluminum container, is described. The corrosion protection is provided by the inclusion in the cleaner of a combination of one or more organic acids and one or more anionic surfactants present in the cleaner. The cleaner has a pH equal to or less than 3. The cleaner may also include a nonionic surfactant and has an aqueous carrier, such as purified water. The cleaner can be an aerosol or a non-aerosol cleaner.

Abstract: A chelating system for inclusion in a composition at least stored in a polymer lined metal passivated steel container which provides for stability of both the composition and the container. The composition preferably is a cleaning composition including a color-changing dye or indicator. The chelating system provides for stable storage of the composition through preventing degradation of the dye/indicator over an extended storage time. The chelating system included in the composition has a low affinity for the passivation metal on the steel container which provides for stability of the polymer liner present over the passivation layer and, thus, provides for the stability of the container. A preferred combination is a cleaning composition including (a) tetrasodium iminodisuccinate as the chelant and (b) a pH sensitive color-changing dye/indicator, in combination with a PET-lined chromium passivated tin-free steel container.

Abstract: A chelating system for inclusion in a composition at least stored in a polymer lined metal passivated steel container which provides for stability of both the composition and the container. The composition preferably is a cleaning composition including a color-changing dye or indicator. The chelating system provides for stable storage of the composition through preventing degradation of the dye/indicator over an extended storage time. The chelating system included in the composition has a low affinity for the passivation metal on the steel container which provides for stability of the polymer liner present over the passivation layer and, thus, provides for the stability of the container. A preferred combination is a cleaning composition including (a) tetrasodium iminodisuccinate as the chelant and (b) a pH sensitive color-changing dye/indicator, in combination with a PET-lined chromium passivated tin-free steel container.