A cleaner composition, a cleaning aerosol, and a method for cleaning a contaminated part, in which the contaminated part, particularly a part around an automobile brake or the like, can be cleaned easily, safely, and with high efficiency and minimal environmental impact. A cleaner composition can include a component (A); cis-1-chloro-3,3,3-trifluoropropene (HCFO-1233zdZ) as a cleaning agent; and a component (B); carbon dioxide as a propellant; wherein a content of the component (B) contains 1.6 to 10 parts by mass with respect to 100 parts by mass of the component (A).

System for selectively contacting a cleaning composition with a surface of a turbine engine component is presented. The system includes a cleaning apparatus and a manifold assembly. The cleaning apparatus includes an upper portion and a lower portion defining a cleaning chamber configured to allow selective contact between the cleaning composition and a surface of the first portion of the turbine engine component. The upper portion includes a plurality of fill holes in fluid communication with the cleaning chamber, and the lower portion includes a plurality of drain holes in fluid communication with the cleaning chamber. The manifold assembly is configured to selectively circulate the cleaning composition from a reservoir to the cleaning chamber via the plurality of fill holes, and recirculate the cleaning composition from the cleaning chamber to the reservoir via the plurality of drain holes. Methods for selectively cleaning a turbine engine component is also presented.

A suctionable gel for eliminating a contaminating species contained in an organic layer on the surface of a material, consisting of a colloidal solution comprising, preferably consisting of: 1 wt % to 25 wt %, preferably 5 wt % to 20 wt % based on the total weight of the gel, of at least one inorganic viscosifying agent; 13 wt % to 99 wt %, preferably 80 wt % to 95 wt % based on the total weight of the gel, of an organic solvent selected among the terpenes and the mixtures thereof; optionally, 0.01 wt % to 10 wt %, based on the total weight of the gel, of at least one dye and/or pigment; optionally 0.1 wt % to 2 wt %, based on the total weight of the gel, of at least one surfactant. The disclosure further relates to a decontamination method using the gel.

A suctionable gel for eliminating a contaminating species contained in an organic layer on the surface of a material, consisting of a colloidal solution comprising, preferably consisting of: 1 wt % to 25 wt %, preferably 5 wt % to 20 wt % based on the total weight of the gel, of at least one inorganic viscosifying agent; 13 wt % to 99 wt %, preferably 80 wt % to 95 wt % based on the total weight of the gel, of an organic solvent selected among the terpenes and the mixtures thereof; optionally, 0.01 wt % to 10 wt %, based on the total weight of the gel, of at least one dye and/or pigment; optionally 0.1 wt % to 2 wt %, based on the total weight of the gel, of at least one surfactant. The disclosure further relates to a decontamination method using the gel.

Described are compositions and methods relating to enzyme-containing, hot-melt-prepared granules produced from a starting material that contains an amount of water sufficient to denature the enzyme under hot-melt processing conditions. The resulting granules are particularly useful in consumer and industrial products, such as detergent, animal feed, food, personal care and agricultural compositions.

An object of the present invention is to provide a chemical liquid and a chemical liquid storage body having excellent performance of inhibiting metal impurity-containing defects. The chemical liquid according to an embodiment of the present invention contains an organic solvent, organic impurities, and metal impurities, in which the organic impurities contain a phosphoric acid ester and an adipic acid ester, and a mass ratio of a content of the phosphoric acid ester to a content of the adipic acid ester is equal to or higher than 1.

An object of the present invention is to provide a chemical liquid and a chemical liquid storage body having excellent performance of inhibiting metal impurity-containing defects. The chemical liquid according to an embodiment of the present invention contains an organic solvent, organic impurities, and metal impurities, in which the organic impurities contain a phosphoric acid ester and an adipic acid ester, and a mass ratio of a content of the phosphoric acid ester to a content of the adipic acid ester is equal to or higher than 1.

A method of cleaning a contaminated surface, such as cleaning the elongate interior lumen of an endo scope contaminated with flesh, bone, blood, mucous, faeces or biofilm, said method comprising the steps of: providing a suspension of solid particles in a liquid to said contaminated surface, and flowing said suspension along said surface thereby to remove contaminant from the surface. The suspension is preferably a paste, where the solid material may be e.g. crystals of a salt, silicon oxide or organic material. The paste preferably has a solid fraction between 5 and 55%. A rheology modifier may be present.

A method of cleaning a contaminated surface, such as cleaning the elongate interior lumen of an endo scope contaminated with flesh, bone, blood, mucous, faeces or biofilm, said method comprising the steps of: providing a suspension of solid particles in a liquid to said contaminated surface, and flowing said suspension along said surface thereby to remove contaminant from the surface. The suspension is preferably a paste, where the solid material may be e.g. crystals of a salt, silicon oxide or organic material. The paste preferably has a solid fraction between 5 and 55%. A rheology modifier may be present.

Methods, compositions, and kit(s) for removing corrosion or scale from a metal or a non-metal article are disclosed. In a first stage of the method, an article exhibiting corrosion can be exposed to an acid wash composition including a first acid component having one or more of HCl, Phosphoric Acid, Oxalic Acid, a second acid inhibitor/surfactant component including ethoxylated alkyl mercaptan, and a third thixotropic gelling agent component including Talc or Fumed silica, sufficient to cause gelling of the acid wash composition. In a second stage of the method performed subsequent to the first stage, the article can be exposed to an acid neutralizing composition comprising bicarbonate, borax, isopropyl alcohol and water.