Description

Ammonium p-Xylene-2-Sulphonate is an organic ammonium salt derivative of p-xylene sulfonic acid, valued for its role as a versatile intermediate and surfactant precursor. This compound is particularly significant in industrial synthesis where its sulfonate group and ammonium counterion impart desirable solubility and reactivity characteristics. It is primarily needed by manufacturers in the agrochemical, dye, and specialty chemical sectors for producing dispersants, emulsifiers, and other functional additives.

Application

• Agrochemical Intermediates: Key building block in the synthesis of herbicides, pesticides, and plant growth regulators.
• Dye and Pigment Manufacturing: Acts as a dispersing agent and intermediate in the production of colorants and inks.
• Surfactant and Detergent Production: Serves as a precursor for anionic surfactants used in industrial and institutional cleaning formulations.
• Polymer and Resin Modification: Utilized as a functional monomer or additive to modify surface properties and enhance compatibility.
• Textile Auxiliaries: Employed in fabric treatment processes as a wetting agent, leveling agent, or dye fixative.
• Electroplating and Metal Treatment: Functions as an additive in plating baths for improved surface finish and throwing power.
• Pharmaceutical Synthesis: Used as an intermediate in the manufacture of certain active pharmaceutical ingredients (APIs).
• Research and Development: Serves as a standard or reagent in chemical research for method development and analytical studies.

Basic Information

Product Name	Ammonium p-Xylene-2-Sulphonate
CAS No.	83721-36-2
Molecular Formula	C8H13NO3S
Molecular Weight	203.26 g/mol
Synonyms	Ammonium 2,5-Dimethylbenzenesulfonate; p-Xylene-2-sulfonic Acid Ammonium Salt; 2,5-Dimethylbenzenesulfonic Acid Ammonium Salt; Ammonium 2,5-Dimethylphenylsulfonate; Ammonium p-Xylenesulfonate; AXS; APS; Contact for EINECS details.

Quality Control

Our Ammonium p-Xylene-2-Sulphonate is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for identity, purity, and composition. Certificates of Analysis (COA) detailing the results of tests such as assay, impurity profile, and loss on drying are provided and available upon request to 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 a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%
pH (5% solution)	6.0 - 8.0

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