Automatic photometric titrations of calcium and magnesium in carbonate rocks
Analytical Chemistry
By: Leonard Shapiro and W. W. Brannock
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Abstract
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 type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Automatic photometric titrations of calcium and magnesium in carbonate rocks |
| Series title | Analytical Chemistry |
| DOI | 10.1021/ac60101a008 |
| Volume | 27 |
| Issue | 5 |
| Year Published | 1955 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Description | 4 p. |
| First page | 725 |
| Last page | 728 |
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