A composition includes a fluorinated or perfluorinated organic solvent, and a fluorinated surfactant of the general formula (1): [Formula should be inserted here] Rf is a perfluoroalkyl group having 1-6 carbon atoms. Each occurrence of R.sub.1 and R.sub.2 is independently H or CH.sub.3, n is 1-3, and x is 1-3.

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This invention provides a liquid composition that removes titanium nitride from a substrate without corroding tungsten or a low-k interlayer dielectric also present on said substrate. Said liquid composition has a pH between 0 and 4, inclusive, and contains the following: at least one oxidizing agent (A) selected from the group consisting of potassium permanganate, ammonium peroxodisulfate, potassium peroxodisulfate, and sodium peroxodisulfate; a fluorine compound (B); and a tungsten-corrosion preventer (C). The tungsten-corrosion preventer (C) either contains at least two different compounds selected from a group of compounds (C1) consisting of alkylamines, salts thereof, fluoroalkylamines, salts thereof, and the like or contains at least one compound selected from said group of compounds (C1) and at least one compound selected from a group of compounds (C2) consisting of polyoxyalkylene alkylamines, polyoxyalkylene fluoroalkylamines, and the like. The mass concentration of potassium permanganate in the abovementioned oxidizing agent (A) is between 0.001% and 0.1%, inclusive, and the mass concentration of the abovementioned fluorine compound (B) is between 0.01% and 1%, inclusive.

Embodiments of the present disclosure generally relate to methods for detecting end-points of cleaning processes for aerospace components containing corrosion. The method includes exposing the aerospace component to a first solvent, exposing the aerospace component to a first water rinse, and analyzing a first aliquot of the first water rinse by absorbance spectroscopy to determine an intermediate solute concentration in the first aliquot, where the intermediate solute concentration is greater than a reference solute concentration. The method further includes exposing the aerospace component to an aqueous cleaning solution to remove corrosion from the aluminum oxide layer, exposing the aerospace component to a second solvent, and exposing the aerospace component to a second water rinse, and analyzing a second aliquot of the second water rinse by absorbance spectroscopy to determine a post-clean solute concentration in the second aliquot, where the post-clean solute concentration is less than the intermediate solute concentration.

The present invention provides anti-fogging agents and cleaners that provide long-lasting prevention of fogging of glass, plastic, or other hard surfaces. The present invention relates to an anti-fogging agent or cleaner which contains: (A) a fluorinated amphoteric surfactant; (B) a fluorinated anionic or cationic surfactant; and (C) a non-fluorinated amphoteric surfactant. The present invention also relates to an eyeglass cleaner including a non-woven fabric impregnated with the anti-fogging agent or cleaner.

A surfactant composition includes a surfactant component including an alcohol ethoxy sulfate having a C.sub.8-C.sub.20 backbone ethoxylated with from about 1 to about 10 moles of ethylene oxide and is present in an amount of from about 20 to about 80 weight percent actives. The surfactant composition also includes water present in a total amount of about 10 to about 35 weight percent. The surfactant composition further includes an alkyl alcohol present in an amount of from about 3 to about 10 weight percent. The surfactant composition also includes a glycol ether present in an amount of about 2 to about 20 weight percent. The surfactant composition has a viscosity of less than about 5,000 cps measured at 20° C.

The present invention relates to multi-use cleaning and degreasing detergent compositions, based on non-hydrolysed collagen, with improved cleaning and biodegradable properties, wherein the non-hydrolysed collagen is the surfactant and its presence in the composition, when formulated together with other surfactants, boosts the cleaning and degreasing effect of the composition as a result of the optimal quantitative ratio of the ingredients thereof and the synergy displayed between the non-hydrolysed collagen and the surfactant, and wherein the ranges by weight of the collagen and the surfactants do not exceed 25-30% by weight of the composition.

Alkaline cleaning compositions with a blend of an amine and a nonionic alcohol ethoxylate between about 1:2 to about 1:10, preferably about 1:5 to about 1:10, with an alkalinity source and chelant are provided. The cleaning compositions provide efficacious cleaning of fatty soils to enhance fatty soil removal. Methods of cleaning surfaces using the cleaning composition are also disclosed.

Alkaline cleaning compositions with a blend of an amine and a nonionic alcohol ethoxylate between about 1:2 to about 1:10, preferably about 1:5 to about 1:10, with an alkalinity source and chelant are provided. The cleaning compositions provide efficacious cleaning of fatty soils to enhance fatty soil removal. Methods of cleaning surfaces using the cleaning composition are also disclosed.

A method is used for cleaning heat exchanger systems. The method is performed at a computer system having one or more processors and memory storing one or more programs configured for execution by the one or more processors. The method determines component percentages of a cleaning solution based, at least in part, on operational parameters of a heat exchanger system. The operational parameters include chemical composition of fluids passing through the heat exchanger system and operating temperatures of the fluids passing through the heat exchanger system. The component percentages of the cleaning solution include: (1) hydrogen peroxide, 2-90 wt. %; (2) a complexing agent, 3-30 wt. %; (3) water-soluble calixarene, 0.01-10 wt. %; and (4) water. The complexing agent includes a polybasic organic acid or a sodium salt thereof, or a derivative of phosphorous acid.

The present disclosure relates to compositions and methods of using the compositions for treating a floor surface. The disclosed compositions clean the floor surface, repair damage, or maintain the original look of the floor. The disclosed compositions also do not provide a permanent finish on the floor, are temporary coatings, or do not significantly change the gloss of the floor after application.