Determination of lithium in rocks by distillation

Analytical Chemistry



A method for the quantitative extraction and recovery of lithium from rocks is based on a high temperature volatilization procedure. The sample is sintered with a calcium carbonate-calcium chloride mixture at 1200° C. for 30 minutes in a platinum ignition tube, and the volatilization product is collected in a plug of Pyrex glass wool in a connecting Pyrex tube. The distillate, which consists of the alkali chlorides with a maximum of 5 to 20 mg. of calcium oxide and traces of a few other elements, is removed from the apparatus by dissolving in dilute hydrochloric acid and subjected to standard analytiaal procedures. The sinter residues contained less than 0.0005% lithium oxide. Lithium oxide was recovered from synthetic samples with an average error of 1.1%.

Publication type Article
Publication Subtype Journal Article
Title Determination of lithium in rocks by distillation
Series title Analytical Chemistry
DOI 10.1021/ac60025a031
Volume 21
Issue 1
Year Published 1949
Language English
Publisher ACS Publications
Description 3 p.
First page 173
Last page 175
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