Solubility behaviour and thermodynamic analysis of methyleneaminoacetonitrile in binary (ethanol + water, ethanol + 2-propanol, ethanol + n-butanol) solvents

The solubility of methyleneaminoacetonitrile in binary (ethanol + water, ethanol + 2-propanol, ethanol +  n -butanol) solvents was measured by a laser dynamic method under p  = 101.1 kPa at temperatures ranging from 278.15 K to 323.15 K. The solubility increased with increasing temperature at a given solvent composition; the solubility also increased with the increasing content of ethanol at a given temperature. The modified Apelblat equation, λh equation and Jouyban-Acree model were used to correlate the experimental solubility data, the values of RD and RMSD indicated that these models fit solubility data well. The calculated thermodynamic properties of Δ sol H° , Δ sol S° , Δ sol G° showed that the dissolution process in binary solvents was endothermic and entropy-driven.