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Density for Water + Ethylenediamine at Temperatures between 283 and 353 K

Krister Ström (Institutionen för kemi- och bioteknik, Kemisk apparatteknik) ; Åsa U Burman (Institutionen för kemi- och bioteknik, Kemisk apparatteknik)
Journal of Chemical and Engineering Data (0021-9568). Vol. 53 (2008), 10, p. 2307-2310.
[Artikel, refereegranskad vetenskaplig]

The density for mixtures of ethylenediamine (EDA) and water at 0.2 MPa was measured with a vibrating tube densitometer in the temperature range of 283 K to 353 K at intervals of 10 K. The entire composition range was covered with intervals of molar fractions of 10 %. The excess volume has a minimum at a molar fraction of water of 59 %, corresponding to a maximum at 69 % in the departure from additivity in density. The variation with temperature in excess volume is small, but for density it is complex. The temperature dependence in density is well described by combining a Redlich-Kister model for excess volume without temperature dependent parameters with models for the pure component densities.

Nyckelord: density measurement, excess volume, Redlich-Kister, ethylenediamine, water



Denna post skapades 2009-01-23. Senast ändrad 2016-07-21.
CPL Pubid: 88801

 

Institutioner (Chalmers)

Institutionen för kemi- och bioteknik, Kemisk apparatteknik (2005-2014)

Ämnesområden

Kemiteknik

Chalmers infrastruktur