p-toluenesulfonic acid monohydrate, CAS No. 6192-52-5

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6192-52-5

Catalog No. EBD2205245

CAS 6192-52-5

Name p-toluenesulfonic acid monohydrate

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Basic Information

Synonyms: p-toluenesulfonic acid monohydrate PTSAmonohydrate p-toluenesulfonicacidmonohydrate paratoluenesulfonicacidmonohydrate

Molecular Formula: C7H10O4S

Molecular Weight: 190.22

MDL Number: MFCD00142137

Categories: Materials Chemistry > Polymers and Macromolecular Materials > Polymer Additives Synthetic Chemistry > Basic Synthetic Reagents > Other Basic Synthetic Reagents Synthetic Chemistry > Organic Building Blocks > Other Organic Building Blocks

Product Description:

P-Toluenesulfonic acid monohydrate is a strong organic acid with the molecular formula C7H8O3SбдH2O. It exists as a white crystalline solid and is highly soluble in water, alcohols, and other polar organic solvents. As the monohydrate form of p-toluenesulfonic acid (PTSA), it is a stable and convenient source of the anhydrous acid. Its primary application is as a catalyst in organic synthesis, particularly for esterification, acetylation, dehydration, and polymerization reactions. It is widely used in the production of pharmaceuticals, agrochemicals, and fine chemicals as an efficient and recyclable acid catalyst. Additionally, PTSA serves as an industrial additive in the manufacturing of coatings, resins, and cleaning agents, where it acts as a curing agent or pH adjuster. Due to its strong acidity and low cost, it is a common alternative to sulfuric acid in many industrial processes.

Physical Properties

Melting Point: 96-99 °C(lit.)

Boiling Point: 140°C 20mm

Flash Point: 180 °C

Density: 1,24 g/cm3

Solubility: Soluble in water

Storage: Store at RT.

Safety Information

Packing Level: III

Hazard Category: 8

Transport Codes: 2585PSN2

Analytical Data

Appearance: white crystals