Thermodynamic investigation of the orthophosphoric acid-N,N-dimethylformamide system

The solution and mixing enthalpies of phosphoric acid (H3PO4)-N,N-dimethylformamide (DMF) system over the whole concentration range were measured at a temperature of 25 °C. Conclusions about complex-formation in the system under investigation were drawn. The standard solution enthalpy of phosphoric acid in DMF was calculated.