The sound velocity in liquid binary mixtures of $n$-alkanes

The method of direct measurement of the time of pulse transmission is used for investigating the sound velocity in liquid binary mixtures of $n$-alkanes, namely, $n$-hexane $+$ $n$-hexadecane, $n$-octane $+$ $n$-hexadecane, and $n$-decane $+$ $n$-hexadecane in the range of temperatures from $298$ to $433$ K and pressures from $0.1$ to $100.1$ MPa. The maximal error of measurements is $0.1\%$. It is for the first time that experimental data for mixtures of $n$-octane $+$ $n$-hexadecane and $n$-decane $+$ $n$-hexadecane are obtained.