A method of inhibiting the precipitation and deposition of calcium oxalate scale in an aqueous system is disclosed, in which an effective amount of a combination of a high molecular weight lignosulfonate compound and a phosphate compound is added to the system.

Disclosed is a method for preparing barium titanate powder by oxalate synthesis, whereby barium titanate powder or doped barium titanate powder with excellent powder properties can be produced at high efficiency and with economic benefit. An aqueous solution containing barium chloride and titanium chloride or further containing at least one dopant serving as a donor or acceptor is mixed with an aqueous oxalic acid solution to afford barium titanyl oxalate (BTO) or doped-BTO as a precipitate whic...

A process for the production of a dialkyl carbonate, e.g. dimethyl carbonate, or a dialkyl oxalate, e.g. dimethyl oxalate, from butane, oxygen carbon monoxide and an alcohol is provided in a series of integrated process steps. In the case of a dialkyl oxalate, the product can be hydrogenated further to produce an ether of ethylene glycol.

Tetrakis(hydroxymethyl)phosphonium oxalate is prepared by reacting formaldehyde with phosphine and oxalic acid with vigorous agitation without the use of a catalyst. The product is useful as a flame retardant for cellulose fabrics.

Methods and diagnostic compositions are disclosed for enhancing magnetic resonance imaging which utilize a paramagnetic metal cluster. Magnetic resonance contrast media containing Z.sup.+ [Mn.sub.12 X.sub.12 (OYR).sub.16l (L).sub.4 ].sup.-, where OYR is an oxyacid such as benzoic acid, acetic acid, methyl sulphonic acid, methyl phosphonic acid; L is a neutral donor such as water, alcohol, pyridine, or other amines; X is a chalcogen, such as O or S; and Z is a pharmaceutically acceptable counteri...

This invention provides materials and procedures for the delivery of selected strains of bacteria and/or oxalate-degrading enzymes to the intestinal tracts of persons and/or domestic or zoological animals who are at increased risk for oxalate related disease because they have lost, or have inadequate concentrations of these bacteria. The administration of these bacteria and/or the relevant enzyme removes oxalate from the intestinal tract and thus reduces the amount of oxalate available for absor...

A poly(methylene oxalate) polymer, [poly(oxy(1,2-dioxo-1,2-ethanediyl)oxymethylene)], a bis(tetrabutylammonium) oxalate salt, methods of synthesis thereof and methods of use are provided. Poly(methylene oxalate) is nearly insoluble in all common organic solvents, does not melt and is resistant to fire. Applications are as a light-weight material for use at high temperatures, e.g., as a structural material in aircraft and space vehicles, as a binder for brake systems, and as an insulator for micr...

Oxalate conversion coating method for stainless steel suitable for cold-working thereof which is characterized in that stannous salt is added into the treating solution consisting of principal agent of oxalic acid and/or oxalates, activating agents and oxidizing agents.

This invention relates to a means and method for improving the storage stability of a chemiluminescent reaction component comprising an oxalic-type compound in a solvent, by adding a weak acid thereto, said reaction component being capable of providing chemiluminescent light on admixture with a hydroperoxide compound in the presence of a fluorescer.

An oxalic acid or oxalate composition and method of treatment of warm blooded animals including humans and pets is provided which includes at least one therapeutically effective form of oxalic acid or oxalate selected, for example, from oxalic acid in a free acid, ester, lactone or salt form, oxalates including sodium oxalate, a nutritional supplement containing oxalic acid or oxalate, oxalic acid dihydrate, anhydrous oxalic acid, oxamide, oxalate salts, natural or processed foods including mold...