p-Toluenesulfonic Acid
Hosea Chem® supplies p-Toluenesulfonic Acid (CAS 104-15-4 / Cas 6192-52-5) in bulk from China for acid catalysis, organic synthesis and industrial chemical applications. Send Inquiry
Product Description
p-Toluenesulfonic Acid, CAS 104-15-4
p-Toluenesulfonic Acid (PTSA) is an aromatic sulfonic acid also known as 4-Methylbenzenesulfonic Acid, 4-Toluenesulfonic Acid and Tosic Acid. It has the molecular formula C7H8O3S and a molecular weight of 172.20 g/mol.
p-Toluenesulfonic Acid is a strong organic acid widely used as an acid catalyst and chemical intermediate. Its catalytic properties make it suitable for acid-catalyzed organic reactions, resin production and polymer-related processes.
PTSA is used in the manufacture of resins, polymers, dyes, pharmaceuticals and other specialty chemicals. It can also be used in industrial cleaning and other chemical processes where a strong organic acid is required.
Commercial p-Toluenesulfonic Acid may be supplied in different forms and concentrations, including solid flakes and concentrated solutions. Product specifications should be confirmed according to the required grade and sulfuric acid content.
Product Chemical Properties
Chemical Name: p-Toluenesulfonic Acid
CAS No.: 104-15-4
Synonyms: PTSA, p-TSA, Tosic Acid, 4-Methylbenzenesulfonic Acid, 4-Toluenesulfonic Acid, Toluene-4-sulfonic Acid, p-Toluenesulphonic Acid
Molecular Formula: C7H8O3S
EC No.: 203-180-0
Chemical Type: Aromatic Sulfonic Acid
Main Function: Acid Catalyst / Chemical Intermediate
Product Technical Specification
Appearance: white crystalline powder
Purity: ≥ 95.0%
Free Acid : ≤ 2.0%
Water: ≤ 4.0%
Fe Assay: ≤ 30 ppm
Applications of p-Toluenesulfonic Acid
p-Toluenesulfonic Acid is mainly used as a strong organic acid catalyst and chemical intermediate in industrial chemical synthesis.
Main applications include:
Acid catalyst for organic synthesis
Resin and polymer manufacturing
Curing agent for selected resin systems
Pharmaceutical intermediates
Dye and pigment manufacturing
Chemical synthesis
Industrial cleaning formulations
Adhesives and coatings
Specialty chemical production
Metal cleaning and descaling applications
PTSA is particularly useful in acid-catalyzed reactions where a strong, non-oxidizing organic acid is required. Industrial sources also identify catalyst, intermediate and surfactant-related uses for p-toluenesulfonic acid.
Packaging
25kg/bag.
Production Capacity
24000MT/year.
Storage Requirements
Store closed containers in a cool, dry, well-ventilated area, avoid exposure to direct sunlight.
Shelf life: 24months.