Xylene sulphonic acid

Xylene sulphonic acid

Xylenesulfonic acid; XSA; Dimethylbenzenesulfonic acid; Sulfonic acid, xylene

CAS 25321-41-9

Chemical Formula C₈H₁₀SO₃

Molecular Weight ~186.23 g/mol (depends on isomer)

Xylene sulphonic acid is an aromatic sulfonic acid primarily used as a catalyst in Performance Chemicals and industrial processes. It is also utilized in the production of dyes, resins, and surfactants, playing a key role in various formulation and manufacturing applications.

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Industrial Uses

1. Fabric Solutions

  • Sulfonating Agent in Dye Synthesis: Xylene sulphonic acid is used to introduce sulfonic acid groups into aromatic rings during the manufacture of azo dyes, improving dye solubility and fiber binding.
  • Dispersing Agent Precursor: It is used to prepare dye intermediates that act as dispersants, ensuring even distribution of color in textiles or coatings.
  • Dyeing and Finishing Auxiliary: Xylene sulphonic acid enhances dye penetration and bonding during textile dyeing, especially with disperse or acid dyes.
  • Resin Finishing Catalyst: Used in the cross-linking of formaldehyde-based resins, which improve wrinkle resistance and fabric durability.

2. Cleaning & Disinfectants

  • Intermediate for Alkylbenzene Sulphonates: It helps in manufacturing linear alkylbenzene sulfonic acid (LABSA), a primary component of household detergents.
  • Catalyst in Sulfonation Reactions: Acts as a catalyst and sulfonating agent in the formation of synthetic detergents, particularly for industrial or institutional cleaners.

3. Paint, Coatings & Adhesives

  • Catalyst for Resin Modification: Used as an acid catalyst in modifying alkyd and melamine resins, helping to adjust drying time and hardness in coatings.
  • Additive for Pigment Dispersion: Aids in stabilizing pigment particles in aqueous and solvent-based formulations, preventing settling.
  • Curing Catalyst in Adhesive Resins: Acts as a curing acid for adhesives based on phenolic and melamine-formaldehyde resins, enhancing bond strength and setting speed.

4. Performance Chemicals

  • Sulfonation Catalyst in Organic Synthesis: Functions as a sulfonating agent and acid catalyst for producing aromatic sulfonic acids, esters, and surfactant intermediates.
  • Intermediate for Agrochemicals and Additives: Used in synthesizing chemical intermediates for herbicides, emulsifiers, and lubricant additives.

Specifications

Assay ≥ 95%
Appearance Brown viscous liquid or crystalline solid (isomer dependent)
Odor Slight aromatic odor
Boiling Point Decomposes before boiling
Melting Point 90 – 105 °C (varies with isomer)
Density ~1.25 – 1.35 g/cm³ (at 20 °C)
Solubility Soluble in water and alcohols
Viscosity High (varies by form and temperature)
Flash Point > 100 °C (closed cup)

Hazard Symbols

Corrosives
Irritants/Sensitisers/Other Hazards
Environmental Hazard

FAQs

1. What is the current price of Xylene sulphonic acid in India?
The price Xylene sulphonic acid can vary based on factors such as purity, quantity, etc. For the most accurate and competitive pricing, please contact us at +91.6301 00 6301 directly for a customized quote tailored to your needs.

2. Where can I buy Xylene sulphonic acid in India?
You can purchase Xylene sulphonic acid from MULTICHEM, a leading exporter with a reputation for quality and reliability. We provide convenient options for bulk orders and direct shipments across global markets. For more details on how to place an order, please visit our website or contact our sales team.

3. What is the minimum order quantity (MOQ) for Xylene sulphonic acid?
Our minimum order quantity (MOQ) Xylene sulphonic acid is designed to cater to both small-scale and large-scale needs. The MOQ depends on the packing size of the product which could range from 25 kg to 250kg.

4. How can I ensure the quality of Xylene sulphonic acid supplied by Multichem?                   
We adhere to stringent quality control processes to ensure that our products meet the highest standards of purity and effectiveness. They undergo rigorous testing and quality checks to guarantee that they comply with industry specifications. We provide a Certificate of Analysis (CoA) with every shipment to ensure transparency and quality assurance.