Liquid–liquid equilibrium in binary systems of isomeric C8 aliphatic monoethers with nitromethane

• New apparatus measuring liquid–liquid and solid–liquid-equilibria was constructed.
• LLE data for isomeric C8 aliphatic ethers and nitromethane were measured.
• Influence of the position of ether group on the solubility curve was discussed.

New apparatus to measure liquid–liquid or solid–liquid equilibria by a synthetic method has been built and described. It was used to determine the liquid–liquid equilibrium curves for four binary mixtures of nitromethane + {heptyl methyl ether–CH3OnC7H15, or ethyl hexyl ether–C2H5OnC6H13, or pentyl propyl ether nC3H7OnC5H11, or dibutyl ether nC4H9OnC4H9}. The influence of position of the ethereal group on the solubility curve has been discussed.