p-Toluenesulphonic acid monohydrate ≥98 %, pure

Description

p-Toluenesulfonic Acid Monohydrate (PTSA·H₂O) is a strong organic acid commonly used in organic synthesis. Here are some key points about this compound:

Properties

• Chemical Formula: C₇H₈O₄S·H₂O
• Appearance: White crystalline powder or granules
• Density: 1.24 g/cm³ at 20°C
• Melting Point: 96-99°C (205-210°F)
• Boiling Point: 140°C (284°F) at 20 mmHg
• Solubility: Soluble in water (67 g/100 mL at 20°C), soluble in alcohols, ether, and other polar organic solvents
• Odor: Slightly acrid

Uses

• Organic Synthesis: Used as a strong acid catalyst in reactions such as esterification, acetalization, and transesterification.
• Derivatization Agent: Employed in the preparation of tosylates, which are useful intermediates in organic synthesis.
• Purification: Utilized in the recrystallization of other compounds due to its high solubility in water.

Safety Precautions

p-Toluenesulfonic Acid Monohydrate is a hazardous substance and should be handled with care. Use appropriate personal protective equipment such as gloves and goggles, and store in a cool, dry place away from incompatible substances1.