Process for preparing lithium hexafluoroarsenate of high purity
AssigneeThe United States of America as represented by the Secretary of the Army
InventorsWalter B. Ebner, Charles Richard Walk
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Abstract
Lithium hexafluoroarsenate of high purity is prepared by a metathetical rtion between potassium hexafluoroarsenate and lithium perchlorate in an inert organic solvent such as methyl formate. The potassium perchlorate produced is insoluble in the solvent and can be readily separated from the lithium hexafluoroarsenate which is soluble in the solvent.
Claims4
A process for producing lithium hexafluoroarsenate which comprises reacting approximately equimolecular proportions of lithium perchlorate and potassium hexafluoroarsenate in an inert organic solvent consisting essentially of a carboxylic acid ester of the formula RCOOR.sub.1, wherein R is hydrogen or an alkyl radical of 1 to 4 carbon atoms and R.sub.1 is an alkyl radical of 1 to 4 carbon atoms at a temperature up to about 70.degree. C. in an inert atmosphere essentially free from water vapor, and recovering the lithium hexafluoroarsenate produced.
Dependencies are inferred from the claim text.