Abstract: Oxidation inhibited fluid compositions are prepared by mixing an aromatic ether represented by the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 independently are phenyl, biphenyl, and terphenyl and n is an integer of from zero (0) to 5, and an alkali metal precursor compound convertible under alkali metal precursor compound conversion conditions into an alkali metal salt of oxalic acid, followed by heating the aromatic ether/alkali metal precursor compound mixture at an elevated temperature in the presence of molecular oxygen or a molecular oxygen-containing gas and for a time effective to convert the alkali metal precursor compound into the corresponding alkali metal salt of oxalic acid and form a colloidal dispersion of the aromatic ether and an oxidation inhibiting amount of the alkali metal salt of oxalic acid. The colloidal dispersion is separated from noncolloidally dispersed solid material to thereby recover the oxidation inhibited fluid composition.

Abstract: Fluid compositions useful to serve as oxidation inhibited functional fluids are provided. Such fluid compositions comprise a colloidal dispersion of an aromatic ether represented by the formula ##STR1## wherein R.sup.1, R.sup.2, and R.sup.3 independently are phenyl, biphenyl, and terphenyl and n is an integer of from zero (0) to 5, and an oxidation inhibiting amount of an alkali metal salt of oxalic acid.

Abstract: Perfluorinated polyethers having the formulaR.sub.f O--(CF.sub.2 CF.sub.2 O).sub.n --R'.sub.fwherein n is an integer of 1-11 and each of R.sub.f and R'.sub.f is a perfluorinated C.sub.1 -C.sub.5 -alkyl radical, dimers of such polyethers and carbon to carbon intramolecularly coupled cyclic derivatives of such polyethers are produced by direct fluorination of the polyethers in an inert solvent. Compositions of the perfluorinated polyethers and their derivatives are useful as functional fluids.

Abstract: Perfluorinated polyethers having the formulaR.sub.f O--(CF.sub.2 CF.sub.2 O).sub.n --R'.sub.fwherein n is an integer of 1-11 and each of R.sub.f and R'.sub.f is a perfluorinated C.sub.1 -C.sub.5 -alkyl radical, dimers of such polyethers and carbon to carbon intramolecularly coupled cyclic derivatives of such polyethers are produced by direct fluorination of the polyethers in an inert solvent. Compositions of the perfluorinated polyethers and their derivatives are useful as functional fluids.

Abstract: Perfluorinated polyethers having the formulaR.sub.f O--(CF.sub.2 CF.sub.2 O).sub.n --R'.sub.fwherein n is and integer of 1-11 and each of R.sub.f and R'.sub.f is a perfluorinated C.sub.1 -C.sub.5 -alkyl radical, dimers of such polyethers and carbon to carbon intramolecularly coupled cyclic derivatives of such polyethers are produced by direct fluorination of the polyethers in an inert solvent. Compositions of the perfluorinated polyethers and their derivatives are useful as functional fluids.

Abstract: A perfluorinated polyether having the formulaR.sub.f O--(CF.sub.2 CF.sub.2 O).sub.n --R'.sub.fwherein n=3-11 and R.sub.f and R.sub.f ' are perfluorinated C.sub.1 -C.sub.5 alkyl radicals is used in vapor phase soldering applications. Especially useful for such applications is perfluoroheptaglyme.

Abstract: A process for the production of unsaturated primary amines which comprises reacting, in the substantial absence of molecular oxygen, an amine having the formula (R.sub.1 HC=CR.sub.2 CH.sub.2)m N H (3-m), wherein m is 2 or 3 and R.sub.1 and R.sub.2 are hydrogen or C.sub.1 - C.sub.3 alkyl groups, with ammonia in the presence of a catalyst comprising palladium or platinum atoms bearing phosphorus-containing ligands, the reaction being carried out at a temperature of from 0.degree. to 250.degree. C in the presence of a solvent for the amine and the catalyst.

Abstract: An oxidation process for the conversion of an unsaturated amine to an unsaturated nitrile in which the oxidation reaction takes place in the presence of a nitrogen base, a cuprous halide and an alcoholic compound.

Abstract: Oxidation of an unsaturated amine to an unsaturated nitrile is carried out in presence of cuprous chloride, a nitrogen base and a halide salt soluble in the nitrogen base.