Inhibitors and methods for reducing or inhibiting corrosion and/or scale of metals in aqueous systems are provided. Inhibitor compositions may include a polymer and hydrophosphorylated polycarboxylic acids, such as 1-(hydroxyhydrophosphoryl)butane-1,2,3,4-tetracarboxylic acid. The compositions may include other components, such as zinc, molybdate, silicate, cerium, among others. The disclosed hydrophosphorylated polycarboxylic acids are stable in the presence of biocides.

Inhibitors and methods for reducing or inhibiting corrosion and/or scale of metals in aqueous systems are provided. Inhibitor compositions may include a polymer and hydrophosphorylated polycarboxylic acids, such as 1-(hydroxyhydrophosphoryl)butane-1,2,3,4-tetracarboxylic acid. The compositions may include other components, such as zinc, molybdate, silicate, cerium, among others. The disclosed hydrophosphorylated polycarboxylic acids are stable in the presence of biocides.

The present disclosure is directed to processes, compositions and agents for inhibiting corrosion in various substrates, for example metal substrates. The present disclosure is also directed to corrosion inhibitors comprising organometallic polymers such as metal-organic frameworks (MOFs), including compositions and processes comprising MOFs for inhibiting corrosion in metal substrates.

An inhibitor composition contains alkyl thiophosphoric triamide (or a mixture of alkyl thiophosphoric triamide and dicyandiamide),dissolved in a liquid medium comprising at least one organic solvent, at least one amine stabilizer and, optionally, at least one dye and/or at least one odor masking agent, is useful in making fertilizer compositions and in a method of fertilizing target plants.

The present disclosure provides a method for preventing corrosion capable of sufficiently protecting a surface of an aluminum-based member (in particular, a contact surface with a gasket) from corrosion, particularly when the surface of the aluminum-based member is sealed by the gasket. The method for preventing corrosion of a surface of an aluminum-based member constituting a structure that sandwiches the gasket together with another member in a press contact state, wherein a surfactant is made to adhere to the surface of the aluminum-based member.

The present disclosure provides a method for preventing corrosion capable of sufficiently protecting a surface of an aluminum-based member (in particular, a contact surface with a gasket) from corrosion, particularly when the surface of the aluminum-based member is sealed by the gasket. The method for preventing corrosion of a surface of an aluminum-based member constituting a structure that sandwiches the gasket together with another member in a press contact state, wherein a surfactant is made to adhere to the surface of the aluminum-based member.

The present invention relates to a phosphite composition including a phosphite compound A0 represented by formula (1); and an oligomer A derived from the compound A0, wherein the oligomer A includes a structure represented by formula (2):, a number average molecular weight of the oligomer A is 2,000 to 30,000, and the phosphite composition has a content of the oligomer A of 1% or more.

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The present invention addresses the problem of providing a decomposition inhibitor for inhibiting the decomposition of hydrogen peroxide included in an etching liquid composition for titanium nitride. The present invention relates to a decomposition inhibitor that is used to inhibit the decomposition of hydrogen peroxide included in an etching liquid composition for titanium nitride and that includes at least one compound selected from among azole compounds, aminocarboxylic acid compounds, and phosphonic acid compounds as an active component.

The present invention relates to a phosphorous acid compound represented by formula (I): ##STR00001##
wherein R.sub.1 represents a C.sub.1-8 alkyl group, a C.sub.5-8 cycloalkyl group, a C.sub.6-12 alkyl cycloalkyl group, a C.sub.7-12 aralkyl group or a C.sub.6-12 aryl group; R.sub.2 represents a hydrogen atom or a C.sub.1-3 alkyl group; and R.sub.3 represents a C.sub.3-25 alkylene group, a stabilizer for organic materials containing the phosphorous acid compound, a method for stabilizing an organic material in which the phosphorous acid compound is added to the organic material, and a stabilized organic material composition containing an organic material and the phosphorous acid ester compound.

The present invention relates to a phosphorous acid compound represented by formula (I): ##STR00001##
wherein R.sub.1 represents a C.sub.1-8 alkyl group, a C.sub.5-8 cycloalkyl group, a C.sub.6-12 alkyl cycloalkyl group, a C.sub.7-12 aralkyl group or a C.sub.6-12 aryl group; R.sub.2 represents a hydrogen atom or a C.sub.1-3 alkyl group; and R.sub.3 represents a C.sub.3-25 alkylene group, a stabilizer for organic materials containing the phosphorous acid compound, a method for stabilizing an organic material in which the phosphorous acid compound is added to the organic material, and a stabilized organic material composition containing an organic material and the phosphorous acid ester compound.