LAUSR

The present investigation deals with the synthesis and thermophysical evaluation of six natural low-transition-temperature mixtures (NALTTMs) with surfactants as suitable hydrogen bond donors (HBDs) and ammonium salts as hydrogen bond acceptors (HBAs). Thermophysical evaluation of these NALTTMs reveals the linear relationship of density and refractive index and nonlinear relation of conductivity and viscosity with temperature. The obtained results are associated with temperature by binary model equations. Additionally, the molar heat capacity and cohesive energy density manifest close dependence on the corresponding molar mass and follow a linear relation with increasing temperature. It could be concluded from the data that the choice of HBA and HBD with their respective molar ratio has a major influence on the extraction ability and thermophysical properties of NALTTM.