A heteroaryl-thio-substituted pyrone compound that is a heteroaryl-thio-substituted pyrone or a heteroaryl-thio-substituted coumarin. In various embodiments, the heteroaryl-thio-substituted pyrone compound or a reaction product thereof is a metal corrosion inhibitor.

A heteroaryl-thio-substituted pyrone compound that is a heteroaryl-thio-substituted pyrone or a heteroaryl-thio-substituted coumarin. In various embodiments, the heteroaryl-thio-substituted pyrone compound or a reaction product thereof is a metal corrosion inhibitor.

A compound of formula

##STR00001## wherein V, W, X and Y represent N or CH, at least one of V, W, X and Y being N and at least two of V, W, X and Y being CH; and R.sub.1, R.sub.2 and R.sub.3 are each independently of the other hydrogen, C.sub.1-C.sub.8alkyl, C.sub.1-C.sub.8alkoxy, nitro, cyano, trifluoromethyl, halogen or hydroxy; with the proviso that the compounds of formulae

##STR00002##

are excluded, provides good lightfastness properties to textile fibre materials, in particular PES fibre materials.

A compound of formula

##STR00001## wherein V, W, X and Y represent N or CH, at least one of V, W, X and Y being N and at least two of V, W, X and Y being CH; and R.sub.1, R.sub.2 and R.sub.3 are each independently of the other hydrogen, C.sub.1-C.sub.8alkyl, C.sub.1-C.sub.8alkoxy, nitro, cyano, trifluoromethyl, halogen or hydroxy; with the proviso that the compounds of formulae

##STR00002##

are excluded, provides good lightfastness properties to textile fibre materials, in particular PES fibre materials.

The present disclosure describes methods of controlling corrosion in aqueous heat transfer systems, such as boiler systems. The methods add a morpholine generating agent to the aqueous heat transfer system. The methods form morpholine in situ by the partial decomposition of the morpholine generating agent in the aqueous heat transfer system.

The present disclosure describes methods of controlling corrosion in aqueous heat transfer systems, such as boiler systems. The methods add a morpholine generating agent to the aqueous heat transfer system. The methods form morpholine in situ by the partial decomposition of the morpholine generating agent in the aqueous heat transfer system.

Inhibitor compositions for abating undesirable emulsion polymerization during processing of hydrocarbon stream laden with reactive vinylic monomers are provided. The polymerization inhibitor compositions include at least a first inhibitor compound having a stable nitroxide radical and a second inhibitor including phenylenediamine. Methods of inhibiting the polymerization of monomers using the compositions of the disclosure are also provided. The methods of inhibiting polymerization of monomers include a step of adding a composition of the disclosure to a process stream. The process stream includes an ethylenically unsaturated monomer that is suspended in the bulk-phase and highly polar solvents as distractive distillation solvents.

Inhibitor compositions for abating undesirable emulsion polymerization during processing of hydrocarbon stream laden with reactive vinylic monomers are provided. The polymerization inhibitor compositions include at least a first inhibitor compound having a stable nitroxide radical and a second inhibitor including phenylenediamine. Methods of inhibiting the polymerization of monomers using the compositions of the disclosure are also provided. The methods of inhibiting polymerization of monomers include a step of adding a composition of the disclosure to a process stream. The process stream includes an ethylenically unsaturated monomer that is suspended in the bulk-phase and highly polar solvents as distractive distillation solvents.

The present invention relates to increasing longevity of the nitrogen content of soil through improved liquid delivery formulations of nitrification inhibitors. The liquid formulation can also be comprised of nitrification inhibitors and optionally urease inhibitors that are blended solutions of each. The nitrification inhibitors are present in a mixture that comprises both a protic and an aprotic solvent system. The novel formulations are designed to be applied to fertilizers, especially urea and manure based fertilizers. The delivery formulations provide an environmentally sound and inherently safe solvating system that improves the storage stability of the urease inhibitors by utilizing liquid organic non-water containing solvents, maintains the nitrification inhibitors in solution to storage temperatures of at least 10° C., and provides improved application to fertilizer of nitrification inhibitors. These delivery formulations enable safe storage, transport and subsequent application or blending with urea-based or manure-based fertilizers that can be applied to soil in either a liquid or granular form to provide improved nitrogen retention in the soil for uptake for plant life.

The present invention relates to increasing longevity of the nitrogen content of soil through improved liquid delivery formulations of nitrification inhibitors. The liquid formulation can also be comprised of nitrification inhibitors and optionally urease inhibitors that are blended solutions of each. The nitrification inhibitors are present in a mixture that comprises both a protic and an aprotic solvent system. The novel formulations are designed to be applied to fertilizers, especially urea and manure based fertilizers. The delivery formulations provide an environmentally sound and inherently safe solvating system that improves the storage stability of the urease inhibitors by utilizing liquid organic non-water containing solvents, maintains the nitrification inhibitors in solution to storage temperatures of at least 10° C., and provides improved application to fertilizer of nitrification inhibitors. These delivery formulations enable safe storage, transport and subsequent application or blending with urea-based or manure-based fertilizers that can be applied to soil in either a liquid or granular form to provide improved nitrogen retention in the soil for uptake for plant life.