Densities and molal volumes of n-alkylamines from 15 to 80°C

Abstract Densities of seven n ‐alkylamines from 1‐butylamine to 1‐decylamine were determined from 15 to 80°C. The density was found to be a linear function of the temperature within this temperature range. At constant temperature, the molal volume was a linear function of the number of methylene uni...

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Bibliographic Details
Published inJournal of the American Oil Chemists' Society Vol. 71; no. 11; pp. 1297 - 1299
Main Authors LIEW, K. Y, SENG, C. E, LEE, C. G
Format Journal Article
LanguageEnglish
Published Heidelberg Springer 01.11.1994
Subjects
Chemistry
Exact sciences and technology
General and physical chemistry
Solution properties
Solutions
Structure effect
Butylamine
Molar volume
Temperature effect
Experimental study
Primary amine
Density
Physicochemical properties
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Summary:Abstract Densities of seven n ‐alkylamines from 1‐butylamine to 1‐decylamine were determined from 15 to 80°C. The density was found to be a linear function of the temperature within this temperature range. At constant temperature, the molal volume was a linear function of the number of methylene units in the chain for the homologous series. A simple equation with four constants correlating the molal volume with the number of methylene units and temperature of the n ‐alkylamines was formulated. Excellent agreement between the calculated, the measured and the literature values were obtained. Accurate molal volumes, and hence the densities of any n ‐alkylamines, other than methylamine, within the temperature range can be calculated from the equation.
ISSN:0003-021X
1558-9331
DOI:10.1007/BF02540556