An aqueous cleaning composition including: a surfactant; a first compound that is immiscible with water and has Hansen solubility parameters of 10 MPa.sup.0.5.sub.D22 MPa.sup.0.5, 0.sub.P14 MPa.sup.0.5, and 0.sub.H14 MPa.sup.0.5; and a second compound that is miscible with water and has Hansen solubility parameters of 10 MPa.sup.0.5.sub.D22 MPa.sup.0.5, 0.sub.P10 MPa.sup.0.5, and 0.sub.H14 MPa.sup.0.5, wherein the surfactant, the first compound, and the second compound are each independently included in an amount of 0.01 to 30 weight percent, based on a total weight of the cleaning composition.

A cleaner for silicon wafer and a method for cleaning silicon wafer are provided. The cleaner for silicon wafer is essentially consisted of 1-3 wt % of citric acid, 2.5-5 wt % of sodium bicarbonate, limonene, potassium hydroxide and water. The cleaning efficiency may be improved by using the cleaner for silicon wafer to clean the silicon wafer.

A method of treating a building for mold contamination including the steps of assessing and locating mold growth areas, constructing a containment barrier around the mold growth areas, vacuuming, abrading and surface treating the mold growth areas, ceilings, walls and window treatments with mold cleaner, replacing air filters from air handlers, removing all registers and vent grills in the treated areas and washing the vent grills with mold cleaner, vacuuming all registers and accessible ductwork, treating the heating and ventilation system, associated ductwork and wall cavities with an atomized mold cleaner, vacuuming all flooring, horizontal surfaces, walls, furniture and mattresses, re-vacuuming all flooring, re-treating the heating and ventilation system and associated ductwork with an atomized mold cleaner and re-treating the work area including any exposed wall cavities with an atomized mold cleaner, deconstructing and discarding containment barrier and reinstalling all registers and vent grills.

Cleaning compositions including one or more non-ionic surfactants; one or more quaternary ammonium compounds; at least one citrus terpene; one or more chelating agent and water, the cleaning compositions useful for cleaning alkaline surfaces such as building gutters.

The invention relates to an aqueous cleaning and/or sanitising composition comprising (a) at least one biocidal component (b) a polymeric delayed release additive, and (c) at least one surfactant, wherein said composition dries onto a surface being cleaned to form a dry residue and wherein properties of said dry residue are tailored by manipulation of brittleness of the polymeric delayed release additive through identity and/or quantity of the biocidal component and/or surfactant selected. The composition is intended for the cleaning and/or sanitisation of carpet, upholstery or other textiles. The invention also relates to a method of controlling the friability of the dried residue of the composition. The invention also relates to a method of cleaning and/or sanitising a textile article by applying the composition of the invention to said article, and a process of preparing said cleaning and/or sanitising composition.

A lavatory cleansing block including: an alkane sulfonate; a carboxymethylcellulose; a hydrophobe; and optionally a dye, wherein the alkane sulfonate is present in an amount of 15 to 40% by weight of the total block, the weight ratio of alkane sulfonate to carboxymethylcellulose is 3:1 to 8:1 and the total weight of the block is less than 25 g.

A method of treating a building for mold contamination including the steps of assessing and locating mold growth areas, constructing a containment barrier around the mold growth areas, vacuuming, abrading and surface treating the mold growth areas, ceilings, walls and window treatments with mold cleaner, replacing air filters from air handlers, removing all registers and vent grills in the treated areas and washing the vent grills with mold cleaner, vacuuming all registers and accessible ductwork, treating the heating and ventilation system, associated ductwork and wall cavities with an atomized mold cleaner, vacuuming all flooring, horizontal surfaces, walls, furniture and mattresses, re-vacuuming all flooring, re-treating the heating and ventilation system and associated ductwork with an atomized mold cleaner and re-treating the work area including any exposed wall cavities with an atomized mold cleaner, deconstructing and discarding containment barrier and reinstalling all registers and vent grills.

A composition suitable for cleaning hard surfaces comprising a natural oil solvent and a natural oil thickener is provided.

A method of cleaning highway and road construction equipment is disclosed.

Aqueous hard surface cleaner compositions useful for removing permanent ink are disclosed. The compositions comprise 75 to 99 wt. % of water; 0.1 to 5 wt. % of a monoterpene; 0.1 to 5 wt. % of a C.sub.10-C.sub.17 fatty acid derivative; and 0.1 to 5 wt. % of one or more surfactants. The fatty acid derivative is selected from N,N-dialkyl amides, N,N-dialkyl esteramines, and N,N-dialkyl amidoamines. Preferably, a base such as sodium carbonate or monoethanolamine is also included. The invention includes concentrates comprising the non-aqueous components recited above, as well as other applications for the cleaners and concentrates such as graffiti removers and permanent ink erasers. The combination of a monoterpene and certain fatty acid derivatives, especially fatty N,N-dialkyl amides, unexpectedly enables even dilute aqueous compositions to rapidly decolorize black permanent marker from hard, non-porous surfaces.