Determination of Physico-Chemical Constants

Wojciechowski, Mieczysław; Smith, E.R.

doi:10.1038/138030a0

Cited by 2 publications

(2 citation statements)

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“…The data obtained in the present work for the boiling points of five normal aliphatic alcohols are given in table 1. To calculate the boiling points of the substances that were not of the fifth degree of purity on Swi~toslawski's scale, a method of extrapolation [7] previously reported, was used. Table 2 contains a comparison of the author's data for boiling point and the coefficient, ddt, of the alcohols investigated, with those pre-• P vlOusly reported.…”

Section: Resultsmentioning

confidence: 99%

Ebulliometric and tonometric study of normal aliphatic alcohols

Wojciechowski¹

1936

J. RES. NATL. BUR. STAN.

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The following normal aliphatic alcohols: methanol, ethanol, n-propanol, n-butanol, and n-amyl alcohol, were prep ared in a state of hi gh purity. By t h e use of gwi~toslawski's ebulliometric technique, and the compa rati ve m ethod of measurements u sing water as a reference liquid, their n ormal b oiling p oints and The ebulliometric control of purity of the preparations, the use of substances of extreme purity, and the application of the m ethod of comparative m easurements ensure the accuracy of the res ults reported. CONTENTS Page

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Section: Resultsmentioning

confidence: 99%

Ebulliometric and tonometric study of normal aliphatic alcohols

Wojciechowski¹

1936

J. RES. NATL. BUR. STAN.

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“…To compute the physico-chemical constants of the pure compounds a method of extrapolation which has been reported previously [13] was used. The method is similar to that of Swi~toslawski [7] and is based on the correlation of the data for a given property with the purity of the preparation expressed by I:::.t, the difference between its boiling point and condensation temperature.…”

Section: Methods Of Extrapolation Of the Datamentioning

confidence: 99%

Boiling points and densities of acetates of normal alphatic alcohols

Wojciechowski¹,

Smith²

1937

J. RES. NATL. BUR. STAN.

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The boiling points, rates of change of boiling point with pressure, and densities of methyl acetate, ethyl acetate, n-propyl acetate, and n-butyl acetate were measured by precise comparative methods using water as the reference standard. As in previous work on the normal saturated hydrocarbons and normal aliphatic alcohols, it was found that the introduction of each CH2 group into the chain of a molecule containing a normal alkyl group of more than some small number n of carbon atoms causes dt/dp to increase by a constant value which is independent of the chemical nature of the molecule.

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Determination of Physico-Chemical Constants

Cited by 2 publications

References 1 publication

Ebulliometric and tonometric study of normal aliphatic alcohols

Ebulliometric and tonometric study of normal aliphatic alcohols

Boiling points and densities of acetates of normal alphatic alcohols

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