Journal of Analytical Chemistry

, Volume 65, Issue 3, pp 316–318 | Cite as

A test method for determining water in organic solvents

  • V. G. Amelin
  • A. V. Tretyakov
  • T. A. Stepanova


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.


Citric Acid Petroleum Ether Dioxane Test Strip Cobalt Chloride 
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Copyright information

© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  • V. G. Amelin
    • 1
  • A. V. Tretyakov
    • 1
  • T. A. Stepanova
    • 1
  1. 1.Faculty of Chemistry and EcologyVladimir State UniversityVladimirRussia

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