Methanesulfonic Acid Methanesulphonic acid; CH4O3S = 96.10 (75-75-2)Clear, colourless liquid, solidifying at about 20°, miscible with water, slightly soluble in toluene, practically insoluble in hexane., about 1.48; , about 1.430.
, about 1.48; 
, about 1.430.