Densities and Excess Volumes of the 1,3-Dimethylimidazolium Methylsulfate + Methanol System at Temperatures from (313.15 to 333.15) K and Pressures from (0.1 to 25) MPa Gołdon, A.; Da̧browska, K.; Hofman, T.; Journal of Chemical & Engineering Data 2007, 52, 1830-1837