Binary nucleation rate measurements of n-nonane/methane at high pressures

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Abstract
We present homogeneous nucleation rates in the binary mixture n‐nonane/methane in the supercritical regime, measured in a new pulse expansion tube at pressures up to 40 bar, at a temperature of 240 K. It is shown that both n‐nonane and methane are present in the critical cluster. The critical supersaturation of n‐nonane decreases from 30 at 10 bar, down to 6 at 40 bar total pressure.