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

Abstract

The density for mixtures of ethylenediamine (EDA) and water at a pressure of 0.2 MPa have been measured with a vibrating tube densitometer at temperatures in the range (283 to 353) 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 %. The variation with temperature in excess volume is small, whereas the temperature variation in density 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.

Does water belong to the homologous series of hydroxyl compounds H(CH2)nOH?

“…The corresponding densities of the tested liquids were taken from the literature. 4,5 Next, we will return to the discussion on the permittivity of the studied compounds. Fig.…”

“…The molar volume4,5 (a) and the principal dielectric relaxation time[6][7][8] (b) (at 25 1C) of the homologous series of hydroxyl compounds H(CH 2 ) n OH: water (0) and aliphatic alcohols: methanol (1), ethanol (2), propanol (3), butanol (4) and pentanol(5).…”

Solvation dependence of valence electronic states of water diluted in organic solvents probed by soft X-ray spectroscopy

“…For EDA-water mixture, as far as we know, experimental information is still limited to decide appropriate concentration. However, ethylenediamine interact with water molecules by hydrogen bonds 30,31 and should easily solvate water molecule through hydrogen bonds in the mixture. Thus, an appropriate concentration for EDA-D 2 O solution should not be far from that of AN and 3MP solution.…”

Density, Viscosity, and Excess Properties for 1,2-Diaminoethane + 1,2-Ethanediol at (298.15, 303.15, and 308.15) K

“…Especially, the density and viscosity data of aqueous solutions are significant from the practical and theoretical viewpoint. Previously published data [8][9][10][11][12][13][14][15][16] showed the density and viscosity data of pure 1,2-diaminoethane and pure 1,2-ethanediol, but the density and viscosity data over the whole concentration range for the binary mixtures of 1,2diaminoethane + 1,2-ethanediol are generally limited to ambient temperatures.…”