Thermodynamic investigation of room temperature ionic liquid: III. Standard Molar Enthalpy of Formation of EMISE,

Room temperature ionic liquids have emerged as a new kind of media altenative to the conentionally used organic solvents,which are generally volatile, flammable, and hazardous chemicals. some of the propertis that make the room temperarure ionic liquids attractive media for variou applications are the wide liquid range nonvolatility ,non-flammabele nature,less reactivity , and the ability to dissolve a large variety of organic and inorganic substances including even the polymer materials in high concertration. Many of these properties gave made the room temperature ionic liquids a nature friendly green solvent .The room temperature ionic liquids that are currently the focus of extensive investigation are generally a substituted imidazoliumor a pyridinium salt.But any detailed knowledge of fundamental thermodynamic properties of ionic liquid ,which are paramount for the design of any technological porcesses ,is very limited