Abstract
Although the percentage of total acid present may be determined by direct titration with N alkali to phenolphthalein, 1 ml N = 0.06005 g, the purity of glacial acetic acid is best determined by specific gravity and freezing-point. All likely impurities cause a lowering of both freezing-point and specific gravity, with the exception of small percentages of water which have the effect of raising the specific gravity of concentrated acetic acid. Richmond and England1 constructed tables correlating these constants with percentages of acid, and the following values taken from their figures may be used for interpolation.
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© 1964 D. C. Garratt
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Garratt, D.C. (1964). The Quantitative Analysis of Drugs. In: The Quantitative Analysis of Drugs. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-3380-7_1
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DOI: https://doi.org/10.1007/978-1-4613-3380-7_1
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