Thermodynamic properties of organic oxygen compounds XXXVII. Vapour pressures of methanol, ethanol, pentan-1-ol, and octan-1-ol from the normal boiling temperature to the critical temperature

Abstract Vapour pressures greater than 200 kPa of methanol, ethanol, pentan-1-ol, and octan-1-ol were measured. The results were fitted by equations in the form of Chebyshev polynomials, and equations of this type were also used for representation of data already published for the propyl and butyl alcohols extending to their critical temperatures. Great reliance cannot be placed upon the results for pentan-1-ol and octan-1-ol because of decomposition, but it is shown that in respect of some characteristics the vapour-pressure curves obtained for these two compounds conform acceptably with those of the lower members of the series.

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