Para Toluene Sulphonic Acid
Para Toluene Sulfonic Acid (PTSA)
(Monohydrate, Anhydrous and liquid grades.)

Molecular formula :: C7H8O3S.H2O
Molecular weight   :: 190.2,
CAS NO:: 6192-52-5. (Monohydrate Material) 104-15-4 (Hydrous Material / soln.)

Synonyms:: Tosic Acid Monohydrate; Methyl Benzene Sulphonic Acid Monohydrate; Toluene Sulphonic Acid Monohydrate 4 Methyl Benzene Sulphonic Acid

Application :

P Toluene Sulfonic Acid
  • PTSA is comparable in strength to mineral acids such as Sulphuric acid, but are especially suitable for organic reactions where an inorganic, mineral acid could cause charring, oxidation, or an unwanted chemical reaction.
  • It is most useful as acid-catalyst reaction such as esterification / condensation /acetylation / polymerization / alkylation’s / hydrolysis / dehydration.
  • As a hardening agent of furan resin which is applied in foundry Industry (Sand Casting).
  • In Plasticizers industries mainly for DEP / DOP / DBP – As esterification catalyst.
  • It is also used as curing agent for many thermosetting resin system such as varnishes / mino/phenolic/foundry resin/acrylic resins/resoles / epoxies / amino-Plastics and furniture lacquers.
  • As an anti-stress additive for electroplating baths additive, plastics, coatings, dyes, pharmaceutical intermediates, hydrotrope, coupling agent and as a wetting agent.
  • Also applicable for use in food packaging adhesives.
  • As intermediate of dye chemistry
  • In Butyl Acrylate manufacturing – As catalyst.· In Pharmaceutical industries is used for manufacturing of below product – As catalyst. CIPROFLOXACIN , Persantin, Naproxen DOXYCYCLIN SULPHAMETHAXAZOLEs. And produce the intermediates of Amoxicillin, Cefadroxil.
  • It is used as a non-oxidising acid low corrosion catalyst in the manufacturing of Butylacetate, Ethylacetate, Butylacrylate etc.
  • Also used as a catalyst in condensation and acylation reaction. It is used as a neutralising agent for acrylonitrile production




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