Description

2,4-Xylenesulfonic Acid Monohydrate is a versatile organic sulfonic acid derivative, valued for its strong acidity and solubility in organic media. This compound serves as a highly effective acid catalyst and intermediate in various synthetic and industrial processes. It is essential for manufacturers in the chemical, pharmaceutical, and agrochemical sectors requiring a stable, water-soluble acid source for reactions like esterification, alkylation, and resin curing.

Application

• Chemical Synthesis Catalyst: Widely used as an acid catalyst in organic synthesis, particularly for esterification and Friedel-Crafts alkylation reactions.
• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of active pharmaceutical ingredients (APIs) and fine chemicals.
• Polymer & Resin Production: Employed as a curing agent or catalyst in the production of phenolic resins, epoxy resins, and other specialty polymers.
• Dye & Pigment Manufacturing: Acts as an intermediate and sulfonating agent in the synthesis of dyes, pigments, and optical brighteners.
• Electroplating Additive: Used in electroplating baths and surface treatment formulations to improve process stability and metal deposition.
• Agrochemical Formulations: Functions as an intermediate in the production of herbicides, pesticides, and other crop protection agents.

Basic Information

Product Name	2,4-Xylenesulfonic Acid Monohydrate
CAS No.	58811-92-0
Molecular Formula	C8H10O3S • H2O
Molecular Weight	202.23 g/mol
Synonyms	2,4-Dimethylbenzenesulfonic Acid Monohydrate; 2,4-Xylenesulphonic Acid Monohydrate; 2,4-Dimethylphenylsulfonic Acid Hydrate; p-Xylene-2-sulfonic Acid Monohydrate; 2,4-XSA Monohydrate; 2,4-Xylolsulfonsäure-Monohydrat; Acide 2,4-Xylènesulfonique Monohydraté; Ácido 2,4-Xilenosulfónico Monohidrato
EINECS	Contact for details

Quality Control

Our 2,4-Xylenesulfonic Acid Monohydrate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and performance. A comprehensive Certificate of Analysis (COA) documenting assay, impurity profile, and physical characteristics is provided with every shipment to guarantee consistency and support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be kept under dry conditions to prevent caking or degradation. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0 %
Water Content (KF)	7.0 - 9.5 %
Melting Point	60 - 65 °C
Heavy Metals (as Pb)	≤ 10 ppm
Sulfated Ash	≤ 0.1 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.