Product Name: p-Toluenesulfonic acid
CAS: 104-15-4
MF: C7H8O3S
MW: 172.2
EINECS: 203-180-0
Melting point: 106~107℃
Boiling point: 116 °C
Density: 1.07
Vapor pressure: 69.8Pa at 20℃
Refractive index: 1.3825-1.3845
Fp: 41 °C
Storage temp.: Inert atmosphere,Room Temperature
1. Organic Synthesis & Catalysis
Esterification & Acetal Formation:
Catalyzes reactions between alcohols and carboxylic acids (e.g., biodiesel production).
Used in protecting group chemistry (e.g., converting alcohols to acetals).
Friedel-Crafts Alkylation/Acylation: Strong acid catalyst for aromatic substitutions.
Polymerization: Initiates condensation reactions in polyester/polyamide synthesis.
2. Pharmaceuticals
Drug Intermediate: Synthesizes active pharmaceutical ingredients (APIs), including antibiotics and antivirals.
Salt Formation: Converts basic drugs into water-soluble p-toluenesulfonate salts (e.g., tosylate salts like oseltamivir phosphate).
3. Industrial Applications
Electroplating: Acidic electrolyte component for metal plating (e.g., tin, zinc).
Resin & Adhesive Production: Hardening agent for epoxy/furan resins in foundries.
Packed in 25 kg per drum or based on customers' requirements.
1. Temperature: Short-term: Store at room temperature (20–25°C) in a dry place.
Long-term: For extended stability, refrigerate (2–8°C) in a sealed container.
2. Humidity Control: Keep in an airtight container with desiccant packs (silica gel) to prevent moisture absorption.
Avoid exposure to humid environments (can form a hydrate, reducing reactivity).
3. Light Sensitivity: Not highly light-sensitive, but amber glass or opaque containers are preferred for very long storage.