Abstract: A method of treating an aqueous system is described which comprises incorporating in the system a hydroxylamine derivative of the general formula: ##STR1## wherein each of R.sub.1, R.sub.2 and R.sub.3 which may be the same or different represents hydrogen, alkyl of 1 to 8 carbon atoms or aryl or a water soluble salt thereof or a precursor thereof, and a tannin in a weight ratio of at least 2:1. This is particularly useful for boiler water systems.

Abstract: A mixed solvent composition, for cleaning electronic components, which consists essentially of dichloropentafluoropropane and 1,1,1,2,3,4,4,5,5,5-decafluoropentane.

Abstract: A method of inhibiting corrosion and the formation of hydrogen and thus improving absorption in an ammonia/water absorption refrigeration, air conditioning or heat pump system by maintaining the hydroxyl ion concentration of the aqueous ammonia working fluid within a selected range under anaerobic conditions at temperatures up to 425.degree. F. This hydroxyl ion concentration is maintained by introducing to the aqueous ammonia working fluid an inhibitor in an amount effective to produce a hydroxyl ion concentration corresponding to a normality of the inhibitor relative to the water content ranging from about 0.015 N to about 0.2 N at 25.degree. C. Also, working fluids for inhibiting the corrosion of carbon steel and resulting hydrogen formation and improving absorption in an ammonia/water absorption system under anaerobic conditions at up to 425.degree. F. The working fluids may be aqueous solutions of ammonia and a strong base or aqueous solutions of ammonia, a strong base, and a specified buffer.

Abstract: An oxygen scavenging composition composed of a carrier material and a metal-loaded cationic exchange material having the metal in a zero valence state. The composition is contained within the interior cavity of a container to scavenge oxygen therein. The composition may form at least a part of the interior surface of the container or be present therein in the form of a film, mat, sachet or ceramic.

Abstract: The method includes the steps of compressing a carrier to eliminate gas nuclei before exposure of the carrier to the gas; exposing the compressed carrier to the gas under pressure to form a gas-saturated compressed carrier; transporting the gas-saturated compressed carrier to the delivery system; and infusing the gas-saturated compressed carrier from the delivery system at an exit port to the environment without associated bubble formation and cavitation proximate the exit port so that the gas is transported to the site within the environment in solution with the carrier in a supersaturated state, the gas being liberated therefrom remote from the exit port upon arrival at the site within the environment.

Abstract: A buffer solution comprising one or more metal salts, preferably monobasic potassium phosphate and/or monosodium phosphate, dissolved in water creates a rinse having a pH near that of human skin. The buffer solution in various concentrations and compositions is adapted for routine use by professional and casual users of cement to rinse their skin and tools, as a spray-on application for skin and clothes, and as a pre-wash for laundry. The buffer solution may include other metal salts, preferably manganese sulfate, further to reduce hexavalent chromium carried into the rinse from cement. A pH color indicator such as phenolphthalein also may be included to signal when the buffer solution becomes ineffective from prolonged use.

Abstract: This invention relates to the use of iminoalkylenephosphonic acids to prevent corrosion, including both localized corrosion and general corrosion on iron based metal surfaces in contact with a corrosive system water in an aqueous system. The invention also relates to the use of the iminoalkylenephosphonic acids to control formation, deposition and adherence of scale at the surfaces of metals in contact with a scale-forming system water in an aqueous system.

Abstract: A method of combating corrosion of a metal which comprises contacting such metal with a composition containing polyamino acids, their salts and their anhydrides, together with at least one corrosion inhibitor selected from the group consisting of benzotriazole, 4-C.sub.1 -C.sub.4 -alkylbenzotriazoles and 5-C.sub.1 -C.sub.4 -alkylbenzotriazoles.

Abstract: Corrosion prevention compositions which contain lactobionic acid N-alkylamides, and further having a pH below 9.0, are described. In particular, lactobionic acid N-alkylamides in which the saturated or unsaturated alkyl group bonded via the amide function has a chain length of 8 to 18 carbon atoms show a good corrosion-inhibiting action. The use of lactobionic acid N-alkylamides in corrosion prevention compositions and metalworking compositions is also described.

Abstract: Novel oligomeric compounds of formula I ##STR1## wherein the general symbols are as defined in claim 1, are disclosed as stabilisers for protecting organic material against oxidative, thermal or light-induced degradation.

Abstract: The present invention provides certain 3-aryl-5,6-dihydro-1,4,2-ocathiazines and their oxides, useful for the long-term preservation of wood and composite wood materials against wood damaging and wood destroying materials. The present invention also provides compositions containing these 3-aryl-5,6-dihydro-1,4,2-oxathiazines and their oxides, and a suitable vehicle therefor. A method of preserving wood is also disclosed in which a fungicidally or bactericidally effective amount of the present 3-aryl-5,6-dihydro-1,4,2-oxathiazines and their oxides, are applied to the wood substrate to be protected.

Abstract: The use of halo-benzotriazoles as corrosion inhibitors in aqueous systems is disclosed. Halo-benzotriazoles such as chloro-tolyltriazole and bromo-tolyltriazole were found to be more effective corrosion inhibitors than tolyltriazole in the presence of chlorine.

Abstract: The object of the present invention is polycarbonate molding compositions containing polycarbonates, stabilizers of the general formula (I)R.sub.1 --X--CZ--Y--R.sub.2and optionally polypropylene glycols. The object of the present invention is also use of these molding compositions to produce items for medical applications.

Abstract: A halogen scavenger contains as an effective ingredient an aromatic compound which has a resonance-effect-relying electron donating group as a substituent. The aromatic compound is constituted, for example, by an aromatic ring such as a substituted or unsubstituted benzene, naphthalene, anthracene and pyridine ring, and at least one group (a resonance-effect-relying electron donating group) which contains a lone-pair-containing hetero atom, such as an oxygen, sulfur or nitrogen atom, adjacent to the aromatic ring.

Abstract: Corrosion prevention compositions which contain lactobionic acid N-alkylamides are described. In particular, lactobionic acid N-alkylamides in which the saturated or unsaturated alkyl group bonded via the amide function has a chain length of 8 to 18 carbon atoms show a good corrosion-inhibiting action. The use of lactobionic acid N-alkylamides in corrosion prevention compositions and metalworking compositions is also described.

Abstract: A corrosion inhibitor formulation for use in reinforced concrete structures, the inhibitor reducing the rate of corrosion in metallic reinforcing rods placed within the structures. The formulation comprises a mixture of alkali metal glucoheptonates and alkali metal molybdates.

Abstract: A biodegradable corrosion inhibitor, scale inhibitor and dispersant is provided. The inhibitor comprises one or more polymers from a family of poly(amino acid) polymers that include hydroxamic acid-containing sidechains. Methods of reducing corrosion and scale build-up and a method of dispersing solid particulates in a solution or slurry are provided by adding a polymer of the present invention to a solution or slurry.

Abstract: A non-liquid scatter standard for use in nephelometry and turbidimetry systems which comprises a clear silicon rubber gel in which an effective light scattering amount of inorganic particles are suspended. The particles have an index of refraction greater than that of the silicon rubber gel.

Abstract: An improved technique is provided that is capable of accomplishing the expeditious dissolution of gluten (e.g., vital wheat gluten or corn gluten) in water that normally is capable of absorbing water without dissolution. An effective solubilizing concentration of a polysaccharide that contains uronic acid residues is dissolved in the aqueous solvent when contacted with agitation with the gluten component at an elevated temperature. The formation of a substantially homogeneous aqueous solution of the gluten is accomplished with ease without the necessity to resort to the introduction of acids, bases, enzymes, or other solvents as practiced in the prior art. The resulting aqueous solution of gluten is completely edible and is suitable for the controlled uniform introduction of such gluten into association with a variety of food products where it can serve a binding, adhesive, microencapsulation, film-forming, and/or coating function.

Abstract: A method for reducing the rate of degradation of stored agrochemicals, particularly pesticides, is provided which essentially involves incorporating a stabilizing compound into the agrochemical in preparation for storage, with the stabilizing compound selected from the group consisting of a diol and a triol. In the preferred embodiment, a pesticide having the active ingredient METASYSTOX.RTM. has an improved shelf life with the addition of about 2 parts by weight of propylene glycol to about 25 parts by weight of METASYSTOX.RTM..