Densities of 1-Propanol and 2-Propanol via a Vibrating Tube Densimeter from 313 to 363 K and up to 25 MPa

Abstract

PvT properties were determined in the liquid phase for 1-propanol and 2-propanol from 313 to 363 K and up to 25 MPa with an uncertainty lower than ±0.05%. The calibration method of the vibrating tube densimeter was performed with N2 and H2O as reference fluids. The 1-propanol and 2-propanol liquid densities reported in this work are correlated with an eleven-parameter equation of state of Starling and Han (BWRS) and the Tait equation using a least-squares optimization, with a relative deviation lower than ±0.05% for both fluids. The density values calculated by the BWRS equation of state and the Tait equation agree within 0.05% with data reported by Yaginuma et al.15 for 1-propanol and within 0.09% with data reported by Yaginuma et al.16 for 2-propanol.