p-Toluenesulfonic acid
Compounds
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p-Toluenesulfonic acid or tosylic acid is an organic compound with the formula CH₃C₆H₄SO₃H. It is a white extremely hygroscopic solid that is soluble in water, alcohols, and other polar organic solvents. The CH₃C₆H₄SO₂ group is known as the tosyl... Wikipedia
Molar mass: 172.2 g/mol
Boiling point: 284°F (140°C)
Melting point: 220.1°F (104.5°C)
Density: 1.24 g/cm³
Solubility in water: 67 g/100 mL
Formula: C₇H₈O₃S
Acidity (pKa): −2.8 (water) reference for benzenesulfonic acid, 8.5 (acetonitrile)