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Determination of small quantities of fluoride in water: A modified zirconium-alizarin method

Industrial and Engineering Chemistry

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Abstract

The zirconium-alizarin method has been modified to facilitate the convenient and accurate determination of small amounts of fluoride in a large number of water samples. Sulfuric acid is used to acidify the samples to reduce the interference of sulfate. The pH is accurately controlled to give the most sensitive comparisons. Most natural waters can be analyzed by the modified procedure without resorting to correction curves. The fluoride content of waters containing less than 500 parts per million of sulfate, 500 parts per million of bicarbonate, and 1000 parts per million of chloride may be determined within a limit of about 0.1 part per million when a 100-ml. sample is used.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Determination of small quantities of fluoride in water: A modified zirconium-alizarin method
Series title:
Industrial and Engineering Chemistry
Volume
13
Issue:
12
Year Published:
1941
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Industrial and Engineering Chemistry
First page:
901
Last page:
902
Number of Pages:
2