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Automatic photometric titrations of calcium and magnesium in carbonate rocks

January 1, 1955

Rapid nonsubjective methods have been developed for the determination of calcium and magnesium in carbonate rocks. From a single solution of the sample, calcium is titrated directly, and magnesium is titrated after a rapid removal of R2O3 and precipitation of calcium as the tungstate. A concentrated and a dilute solution of disodium ethylenediamine tetraacetate are used as titrants. The concentrated solution is added almost to the end point, then the weak solution is added in an automatic titrator to determine the end point precisely.

Publication Year 1955
Title Automatic photometric titrations of calcium and magnesium in carbonate rocks
DOI 10.1021/ac60101a008
Authors Leonard Shapiro, W. W. Brannock
Publication Type Article
Publication Subtype Journal Article
Series Title Analytical Chemistry
Index ID 70010671
Record Source USGS Publications Warehouse