Correlations for the prediction of the density and viscosity of 1-alcohols at high pressures

•We develop a new generalized density correlation of 1-alcohols at high pressures.•We developed a new generalized viscosity correlation of 1-alcohols at atmospheric pressure.•We develop a new generalized viscosity correlation of 1-alcohols at high pressures.•The liquid density and viscosity equation depends upon the number of carbon atoms, temperature and pressure.•We have proposed an equation for the viscosity equivalent to the Eykman equation for density.•We have predicted the viscosity of 1-alcohols mixtures using the correlation.

We present a correlation for the 1-alcohols density at high pressure based upon the Tait equation. The new equation includes a generalized correlation for the calculation of the density of 1-alcohols at atmospheric pressure and correlates the density of methanol to 1-decanol from (173.15 to 373.15) K at pressures up to 279 MPa within an average absolute percentage deviation of 0.11% from the experimental density values. Also, we use this equation to obtain a model to correlate the liquid viscosities of 1-alcohols. The new model correlates the viscosity at atmospheric pressure within an average absolute percentage deviation of 2.14% from the experimental values. At high pressures (up to 423 MPa), the new model correlates the viscosity of 1-alcohols (methanol through 1-hexadecanol) at temperatures from (293 to 423) K within an average absolute percentage deviation of 3.38%.