A lubricating agent including an ionic liquid formed from a Bronsted acid (HX) and a Bronsted base (B), wherein the Bronsted base has a linear hydrocarbon group having 10 or more carbon atoms and the difference between the pKa value of the Bronsted acid in water and the pKa value of the Bronsted base in water is 12 or more.

A lubricating agent including an ionic liquid formed from a Bronsted acid (HX) and a Bronsted base (B), wherein the Bronsted base has a linear hydrocarbon group having 10 or more carbon atoms and the difference between the pKa value of the Bronsted acid in water and the pKa value of the Bronsted base in water is 12 or more.

The present invention relates to the well drilling field in petroleum industry, in particular to a nano-hybrid lubricant and method thereof, and oil-based drilling fluid. The lubricant comprises: graphite oxide and a biquaternary ammonium salt compound of which the cation part is represented by formula (1). The present invention also provides a method for preparation of the lubricant and an oil-based drilling fluid containing the lubricant. The lubricant provided in the present invention can be comprehended as a nano-hybrid material. Thus, oil-based drilling fluids that contain the lubricant provided in the present invention have lower lubrication coefficient and excellent lubricating property without or with little negative impact on rheological property of the oil fluid, and the lubricant provided in the present invention has excellent thermostability thus suitable for use in operation at a high temperature. ##STR00001##

A lubricant, which includes an ionic liquid including a conjugate base and a conjugate acid including 2 or more cations in a molecule of the conjugate acid, wherein the conjugate acid includes a monovalent group including a straight-chain hydrocarbon group having 6 or more carbon atoms, and an acid that is a source of the conjugate base has a pKa in acetonitrile of 10 or less.

Stable, solid triamine compositions are disclosed. The pressed, cast, extruded or other solid compositions are suitable for antimicrobial, sanitizing and disinfectant applications. Ready-to-use solutions are obtained by dissolving the solid triamine compositions with water and the methods of use thereof are particularly suitable for cleaning, disinfecting, sanitizing, rinsing and/or lubricating. Beneficially, the solid triamine compositions are at least partially neutralized, allowing activity of 90% and greater of the biocidal triamine, and provide at least substantially similar or superior performance and micro efficacy to liquid formulations.

Methods of making triamine solids are disclosed. Solids including free-flowing powders, to pressed, cast, extruded or other solids are disclosed. Compositions employing the solid triamines are provided and methods of use thereof are particularly suitable for cleaning, disinfecting, sanitizing, rinsing and/or lubricating are disclosed.

Provided is a lubricant including a deep eutectic solvent consisting of a hydrogen bond acceptor and a hydrogen bond donor, the lubricant having a halogen atom content of 0.1% by mass or less. The lubricant provided contains a carbon-neutral component, and shows a favorable lubricating property and low corrosiveness to metals.

A grease composition comprising: (i) a mineral base oil containing one or more of fatty ammonium carboxylate salts of formula (I),

##STR00001## wherein R.sup.1 is selected from C.sub.12 to C.sub.20 saturated or unsaturated, branched or straight-chain hydrocarbyl groups; X is selected from NH, .sup.+NH.sub.2 and N(R.sup.4)NH.sub.3.sup.+; R.sup.2 and R.sup.4 are independently selected from C.sub.2 to C.sub.8 saturated or unsaturated, branched or straight chain hydrocarbyl groups, and may be the same or different; R.sup.3 is selected from C.sub.12 to C.sub.26 saturated or unsaturated, branched or straight-chain hydrocarbyl groups; and n is 1 or 2; and (ii) a simple lithium soap thickener, wherein said lubricating grease composition is prepared by a process comprising the steps of combining the mineral base oil with the one or more fatty ammonium carboxylate salts of formula (I) and then thickening said base oil fatty ammonium carboxylate salt mixture with the simple lithium soap thickener.