Description

Tetrakis(Hydroxymethyl)Phosphonium2-Naphthalenesulphonate is a specialized organophosphorus compound that serves as a highly effective flame retardant and finishing agent. Its unique chemical structure provides durable, phosphorus-based flame resistance to various polymeric materials and textiles. This product is essential for manufacturers in the polymer, textile, and construction material industries seeking to enhance the fire safety of their products while maintaining material integrity.

Application

• Flame Retardant for Polymers: A key additive for imparting durable flame retardancy to polyurethane foams, epoxy resins, and other thermosetting plastics.
• Textile Finishing Agent: Used in the production of flame-retardant fabrics for protective clothing, upholstery, curtains, and industrial textiles.
• Wood Treatment: Applied as a component in fire-retardant coatings and impregnation solutions for wood and cellulose-based materials.
• Paper and Cardboard Treatment: Enhances the fire resistance of packaging materials, specialty papers, and decorative boards.
• Adhesive and Sealant Formulation: Incorporated into adhesives and sealants where improved fire performance is required.
• Research & Development: Serves as a valuable intermediate or additive in the development of new flame-retardant systems and materials science.

Basic Information

Product Name	Tetrakis(Hydroxymethyl)Phosphonium2-Naphthalenesulphonate
CAS No.	79481-22-4
Molecular Formula	C15H23O8PS
Molecular Weight	394.37 g/mol
Synonyms	Tetrakis(hydroxymethyl)phosphonium 2-naphthalenesulfonate; THPS 2-Naphthalenesulfonate; Tetrakis(hydroxymethyl)phosphonium naphthalene-2-sulfonate; Phosphonium, tetrakis(hydroxymethyl)-, 2-naphthalenesulfonate; THPN; Flame Retardant THPS-NS; Naphthalene-2-sulfonic acid tetrakis(hydroxymethyl)phosphonium salt
EINECS	Contact for details

Quality Control

Our Tetrakis(Hydroxymethyl)Phosphonium2-Naphthalenesulphonate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent purity, performance, and compliance with relevant industry specifications for flame retardant applications. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with every shipment.

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). Keep the container tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 3.0%
pH (10% solution)	3.0 - 6.0
Residue on Ignition	≤ 0.5%

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