Disclosed herein is a heat transfer fluid additive composition comprising: greater than or equal to 10 weight percent (wt %) of a carboxylic acid, based on the total weight of the composition; an azole compound; and a base, wherein the base is present in an amount sufficient to obtain a pH 8-10.5 when diluted by 50 volume % with water. The heat transfer fluid additive composition can be combined with other components to form a heat transfer fluid. The heat transfer fluid can be used in a heat transfer system.

Disclosed herein is a heat transfer fluid additive composition comprising: greater than or equal to 10 weight percent (wt %) of a carboxylic acid, based on the total weight of the composition; an azole compound; and a base, wherein the base is present in an amount sufficient to obtain a pH 8-10.5 when diluted by 50 volume % with water. The heat transfer fluid additive composition can be combined with other components to form a heat transfer fluid. The heat transfer fluid can be used in a heat transfer system.

A heat-dissipating sheet having a density of 2.0 g/cm.sup.3 or more and an in-plane thermal conductivity of 580 W/mK or more, which comprises carbon black uniformly dispersed among fine graphite particles, a mass ratio of fine graphite particles to carbon black being 75/25 to 95/5, and the carbon black being composed of channel black and ketjen black and/or acetylene black is produced by applying a dispersion of fine graphite particles, carbon black and an organic binder in an organic solvent to a surface of a die, drying it; burning the resultant resin-containing composite sheet to remove the organic binder; and then pressing the resultant composite sheet of fine graphite particles and carbon black for densification.

Disclosed herein are corrosion inhibiting compounds and compositions useful in applications relating to the production, transportation, storage, and separation of crude oil and natural gas. Also disclosed herein are methods of using the compounds and compositions as corrosion inhibitors, particularly in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.

Heat transfer fluid concentrates include: a freezing point depressant, water, or a combination thereof; a carboxylate; an inorganic phosphate; an azole compound; calcium ions and/or magnesium ions; and a water-soluble polymer. Ready-to-use heat transfer fluids and methods for preventing corrosion in heat transfer systems are described.

The present invention relates to dielectric fluids and esters, particularly to ester compositions suitable for use in dielectric fluid compositions as well as to dielectric fluid compositions, methods of manufacturing ester compositions and dielectric fluid compositions, and to electrical apparatus containing the dielectric fluids.

Nanostructured phase change materials (PCMs) which are heterogeneous materials having at least two phases, at least one of the phases having at least one of its dimensions in the nanoscale, and comprising a first agent that undergoes an endothermic phase transition at a desired temperature and a second agent that assists in maintaining a nanostructure, are provided. There are also provided methods for manufacturing such PCMs, and applications thereof for providing thermoregulatory coatings and articles containing such coatings for use in a wide range of applications, such as cooling textiles, wipes, packaging, films, walls and building materials.

Provided herein are compositions comprising at least one estolide compound of formula:

##STR00001##

in which n is an integer equal to or greater than 0; m is an integer equal to or greater than 1; R.sub.1, independently for each occurrence, is selected from optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched; R.sub.2 is selected from hydrogen and optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched; and R.sub.3 and R.sub.4, independently for each occurrence, are selected from optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched. Also provided are uses of the compositions described herein.

A particle comprises an inner part and an outer coating, wherein the inner part comprises MgO and the outer coating comprises hydrophobic nanoparticles, wherein the nanoparticles have an average size of from 1-50 nm and/or the nanoparticles are fused together and form aggregates of 100-1,000 nm of a size less than 1 m, wherein the particle has an average size of from 1 to 1000 m. A device adapted to perform an absorption process comprises at least one such particle. An absorption process comprises contacting such a particle with a liquid or gas.

A particle comprises an inner part and an outer coating, wherein the inner part comprises MgO and the outer coating comprises hydrophobic nanoparticles, wherein the nanoparticles have an average size of from 1-50 nm and/or the nanoparticles are fused together and form aggregates of 100-1,000 nm of a size less than 1 m, wherein the particle has an average size of from 1 to 1000 m. A device adapted to perform an absorption process comprises at least one such particle. An absorption process comprises contacting such a particle with a liquid or gas.