Para toluene sulphonic acid

PTSA monohydrate.

Cas Number :104-15-4
Chemical Formula : C7H8O3S.H2O
Molecular Weight : 190.22

Para toluene sulphonic acid

p-Toluenesulfonic acid (PTSA) is an organic compound with the formula CH₃ C₆H₄ SO₃H. It is a white solid that is soluble in water, alcohols, and other polar organic solvents, available as monohydrate.

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Appearance:: Off white powder, extremely hygroscopic
Free sulphate:: 1.15 - 1.35%
Assay:: 99.5% min.
Moisture (KF method):: 9.5 - 11.5%
Solubility:: Soluble in water & alcohol
Melting point:: 104 deg C (Monohydrate)