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Wednesday, September 15, 2021

09-15-2021-0237 - p-Toluenesulfonic acid (PTSA or pTsOH) or tosylic acid (TsOH)

 p-Toluenesulfonic acid (PTSA or pTsOH) or tosylic acid (TsOH) is an organic compound with the formula CH3C6H4SO3H. It is a white solid that is soluble in water, alcohols, and other polar organic solvents.[5] The CH3C6H4SO2 group is known as the tosyl group and is often abbreviated as Ts or Tos. Most often, TsOH refers to the monohydrate, TsOH.H2O.[5]

As with other sulfonic acids, TsOH is a strong organic acid. It is about one million times stronger than benzoic acid.[5] It is one of the few strong acids that is solid and, hence, conveniently weighed.

Tosic acid.png

https://en.wikipedia.org/wiki/P-Toluenesulfonic_acid

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