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Synthesis of high-purity copper(II) fluoride dihydrate for carrier-distillation emission spectroscopy

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1366/0003702804730844
AuthorSearch for: 1; Search for: 1; Search for: 1
Affiliation
  1. National Research Council of Canada
FormatText, Article
Abstract
The preparation and analysis of high-purity copper fluoride dihydrate for use as a carrier in emission spectroscopy is described. Copper metal was oxidized with hydrogen peroxide or nitric acid in the presence of an excess of different grades of hydrofluoric acid. The resulting copper fluoride was analyzed to determine the effect of different factors on the levels of impurities. The quality of the hydrofluoric acid was the main factor affecting the purity of the product. The order of appearance of contaminants during crystallization of copper fluoride is described. Iron, nickel, and manganese gradually appear as the mother liquor is concentrated, while silicon, tin, aluminum, and lead usually contaminate only the lots immediately preceding evaporation of the solution to dryness. Magnesium, regardless of its concentration in the mother liquor, coprecipitates with all lots of copper fluoride.
Publication date
PublisherSage for the Society for Applied Spectroscopy
In
  • Applied Spectroscopy 34, no. 1: 43–46.
NoteThe authors were affiliated with the National Research Council of Canada, Division of Chemistry when they authored this article.
LanguageEnglish
Peer reviewedYes
NRC numberNRCC 17813
NRC-INMS-4251
NPARC number8896747
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Record identifier0134363d-9138-435f-b8e5-225322b79fb9
Record created2009-04-22
Record modified2020-03-13
Date modified: