Density and Surface Tension of Ionic Liquids [H2N-C(2)mim][PF6] and [H2N-C(3)mim][PF6]

resumo

Two amino functionalized ionic liquids 1-(2-aminoethyl)-3-methylimidazolium hexafluorophosphate, [H2N-C(2)mim][PF6], and 1-(3-aminopropyl)-3-methylimidazolium hexafluorophosphate, [H2N-C(3)mim [PF6], were synthesized and characterized. The density and surface tension of these ionic liquids were measured from (293.15 to 343.15) K. Their values decreased with increasing temperature. The physica properties such as coefficient of thermal expansion, molecular volume, standard molar entropy, lattice energy, and molar enthalpy of vaporization were estimated using experimental data. The critical temperature of the ionic liquids was estimated using Eotvos equations. The values were then used to estimate the boiling temperature of the ionic liquids according to methods of Rebelo. The interstice model was used to predict the thermal expansion coefficient of the ionic liquids, a, and the result was in very good agreement with the experimental value. In addition, the parachor method was used to predict the physical properties of the ionic liquids [H2N-C(n)mim][PF6] (n = 4, 5, 6).

palavras-chave

PHYSICOCHEMICAL PROPERTIES; THERMOPHYSICAL PROPERTIES; AMINO; TEMPERATURE; SEPARATION; CHLORIDE; VISCOSITY; PRESSURE; METAL; CO2

categoria

Thermodynamics; Chemistry; Engineering

autores

Kurnia, KA; Mutalib, MIA; Man, Z; Bustam, MA

nossos autores

Partilhe este projeto

Publicações similares

Usamos cookies para atividades de marketing e para lhe oferecer uma melhor experiência de navegação. Ao clicar em “Aceitar Cookies” você concorda com nossa política de cookies. Leia sobre como usamos cookies clicando em "Política de Privacidade e Cookies".