Described herein is an automatic dishwashing (ADW) composition including as component (A) at least one imidazole-based compound selected from the group consisting of unsubstituted or at least monosubstituted imidazole and benzimidazole. The automatic dishwashing composition may include further components, such as polyakylene imines (component (B)), at least one silicate (component (C)) and/or at least one chelating agent (component (D)). Also described herein is a process for cleaning dishware using said ADW composition as well as a method of using said ADW composition, for example, to reduce any corrosion on the items to be dishwashed (dishware). Also described herein is a method of using at least one imidazole-based compound according to component (A) as a corrosion inhibitor in automatic dishwashing processes.

The present invention relates to a method for substantially nickel-free phosphating of a metallic surface, wherein a metallic surface is treated one after the other with the following compositions: i) with an alkaline, aqueous cleaner composition which comprises at least one water-soluble silicate, and ii) with an acidic, aqueous, substantially nickel-free phosphating composition which comprises zinc ions, manganese ions and phosphate ions. The invention also relates to the above cleaner composition itself and also to a metallic surface phosphate-coated by the above method, and to the use of said surface.

Described herein is a detergent composition including (A) at least one polymer including (a) a core that includes one to 3 moieties of general formula (I),

##STR00001## where Z are different or the same and are selected from the group consisting of C.sub.2-C.sub.12-alkylene and C.sub.3-C.sub.12-cycloalkylene A.sup.1 are different or the same and are: selected from the group consisting of C.sub.1-C.sub.12-alkylene, C.sub.6-arylene, and C.sub.3-C.sub.12-cycloalkylene, or based on citric acid, X.sup.1 is selected from the group consisting of hydrogen, methyl, ethyl, and combinations of at least two of the foregoing, n is in a range of 1 to 100; and (b) polyalkylene oxide chains.

An automatic dishwashing cleaning composition having a new protease.

Cleaning and degreasing compositions containing a diutan gum thickener are provided for removing burnt on, polymerized, carbonized food soils with minimum manual effort. The compositions are ready to use compositions and beneficially remain on a treated surface for sufficient time to permit soil penetration without drying out. The compositions can be easily removed with minimal manual effort, such as use of low pressure water applied to the treated surface, and beneficially do not leave residues. Methods for cleaning and degreasing a surface with the compositions are also provided. Thickening systems employing the diutan gum and laponite clays are also provided.

The present disclosure relates to a cleaning composition for removing an oxide including one selected from an organic acid, an inorganic acid, and any combination thereof; one selected from an organic salt, an inorganic salt, and any combination thereof; an oxidizing agent; a surfactant; and water, and a method of cleaning using the cleaning composition.

A cleaning liquid for cleaning a substrate having a first metal atom-containing layer that contains ruthenium and a second metal atom-containing layer that contains a metal atom other than ruthenium, both of the layers contacting each other, and at least one of the first metal atom-containing layer and the second metal atom-containing layer is exposed on a surface. The cleaning liquid includes at least one of a compound represented by General Formula (a1), a hydrate of the compound, and a salt of the compound, and at least one amine other than the hydrazine compound and a quaternary hydroxide. In General Formula (a1), R.sup.1 and R.sup.2 represent an organic group including no carbonyl group or a hydrogen atom

##STR00001##

A method for removing polymerized soil by adding to the soil a composition which includes: (a) from 4 to 30 wt % of a hydroxide or alkoxide, (b) from 10 to 96 wt % of a C.sub.1-C.sub.12 primary alcohol; and (c) from 0 to 75 wt % of an organic solvent which is not a C.sub.1-C.sub.12 primary alcohol; wherein the composition contains no more than 40 wt % water.

An aqueous cleaning solution for removing rouging deposits on media-contacted surfaces of stainless steels comprises a first component and a second component. The first component is an alkali sulfite and the second component is an alkali formate, wherein the concentrations thereof are adjusted in such manner that formate is present in a molar ratio of 1.5 to 4.2 relative to sulfite, and that the pH value of the cleaning solution is 4.0 to 4.8. For preparing the aqueous cleaning solution, an aqueous solution of an alkali hydroxide is provided initially, thereafter a first amount of concentrated aqueous formic acid is admixed in an excess in such manner that a pH value of 3.5 to 4.5 is established, then a second amount of solid alkali sulfite is admixed in accordance with the sulfite concentration to be established, thus resulting in a pH value of 5.5 to 6.5, and finally a third amount of concentrated aqueous formic acid is admixed until a pH value of 4.0 to 4.8 is attained.

A method for passivating substrate surfaces by removing surface contaminants. The method can remove impurities and components from the surface of a substrate to prevent corrosion and undesirable chemical activity. The method further provides an optimized surface for the application of protective barrier coatings. The method provides significant cost savings due to increased life of substrate, reduced maintenance, and superior barrier coating performance.