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The solubilities of 1-naphthol and 2-naphthol in CO2 have been investigated at the temperatures 313, 333, and 353 K in the pressure range from 10 to 60 MPa. The melting points in the presence of CO2 have been determined at pressures from 10 to 60 MPa. The densities of the systems 1-naphthol/CO2 and 2-naphthol/CO2 were determined at temperatures of 313, 333, and 353 K and at pressures up to 40 MPa by a densitometer. The solubility decreases with increasing temperature above the pressure of 20 MPa and has a maximum. The melting points of naphthols decrease with increasing pressure to a melting point minimal temperature at pressure 20 MPa. The density of the naphthols/CO2 solution can differ from the density of the pure CO2 (below the critical point also by 100% or more).

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