Isochoric heat capacity and coexistence curve of methyl alcohol in the neighborhood of the critical point

A high-temperature adiabatic calorimeter is used to experimentally measure the isochoric heat capacity $C_V$ of methyl alcohol in the temperature range from $474.39$ to $531.63$ K along $22$ isochores which cover the density range from $136.1$ to $750.1$ kg/m$^3$. The data on $C_V$ are used to determine the curve of liquid-vapor phase equilibrium for methyl alcohol. The thus obtained data are described by scaling equations. Comparison is made with results of other researchers.