A test method for determining water in organic solvents

A test method for determining water in organic solvents

A test procedure is developed for determining water in acetone, dioxane, isobutanol, ethanol, petroleum ether, and ethyl acetate in the ranges 0.5–12; 0.5–10; 0.5–8; 0.5–6, and 0.5–4 vol %, respectively. Determination is based on the measurement of the acidity of a solution obtained upon adding citr...

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Veröffentlicht in:Journal of analytical chemistry (New York, N.Y.) N.Y.), 2010-03, Vol.65 (3), p.316-318
Hauptverfasser: Amelin, V. G., Tretyakov, A. V., Stepanova, T. A.
Format: Artikel
Sprache:eng
Schlagworte:
Analysis
Analytical Chemistry
Chemistry
Chemistry and Materials Science
Citric acid
Dioxane
Esters
Methods
Pyridine
Sulfates
Water
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Zusammenfassung:A test procedure is developed for determining water in acetone, dioxane, isobutanol, ethanol, petroleum ether, and ethyl acetate in the ranges 0.5–12; 0.5–10; 0.5–8; 0.5–6, and 0.5–4 vol %, respectively. Determination is based on the measurement of the acidity of a solution obtained upon adding citric acid or sodium hydrogen sulfate to organic solvents using an indicator test strip containing Congo red. The relative standard deviation of the results of analysis is 0.05–0.1; the duration of analysis is about 30 min.
ISSN:1061-9348
1608-3199
DOI:10.1134/S1061934810030184