Tungsten hexaldialkyldithiocarbamates, process for their prepara

Details Tungsten hexaldialkyldithiocarbamates, process for their prepara Tungsten hexaldialkyldithiocarbamates, process for their prepara

1992-09-25

1994-05-03

McAvoy, Ellen M.

Compositions

Electrolytes for electrical devices

252 475, 556 38, C10M13518

Patent

active

053085191

ABSTRACT:
Novel tungsten hexa(dialkyldithiocarbamates) of the general formula I ##STR1## in which R and R.sup.1 can be identical or different, branched or straight-chain, saturated or unsaturated alkyl radicals having 1-18 carbon atoms are prepared by a process in which 6 mols of an alkali metal dialkyldithiocarbamate of the general formula II ##STR2## in which R and R.sup.1 are as signified above and Me can be sodium, potassium or ammonium, are reacted with 1 mol of tungsten hexachloride in a solvent which is inert with respect to the reaction. The alkali metal chloride or ammonium chloride formed is separated off and the tungsten hexa(dialkyldithiocarbamate) is isolated. The tungsten hexa(dialkyldithiocarbamates) of the invention can be used as additives for prolonging the life of hydraulic oils or permanent gear lubrication oils.

REFERENCES:
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patent: 3674824 (1972-07-01), Amidon et al.
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patent: 4786423 (1988-11-01), Schroeder
patent: 4846983 (1989-07-01), Ward, Jr.
patent: 4849123 (1989-07-01), Tipton et al.
Chemical Abstracts, vol. 108, No. 48081c (1988).
Chemical Abstracts, vol. 73, No. 20969 (1970).

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