Description

Tetrakis(Hydroxymethyl)Phosphonium Phosphate(3:1) is a water-soluble, organophosphorus compound that serves as a highly effective and versatile chemical intermediate. Its primary commercial value lies in its ability to impart durable flame retardancy and antimicrobial properties to various polymeric materials. This makes it an essential raw material for manufacturers in the textile, polymer, and specialty chemical industries seeking to enhance product safety and performance. The compound is supplied with a CAS No. of 22031-17-0.

Application

• Flame Retardant for Textiles: Primary application as a durable, non-halogenated flame retardant for cotton, polyester, and their blends, commonly used in protective workwear, upholstery, and drapery.
• Polymer Modification: Acts as a reactive intermediate or additive to impart flame retardancy to polyurethane foams, coatings, and adhesives.
• Antimicrobial Finishing Agent: Used in the production of biocidal finishes for textiles, providing durable protection against bacteria, fungi, and mildew.
• Paper and Wood Treatment: Employed in formulations to enhance the fire resistance of paper products and engineered wood.
• Oilfield and Water Treatment Chemicals: Serves as a precursor for scale and corrosion inhibitors in industrial water systems and oilfield applications.
• Cross-linking Agent: Utilized in resin formulations for wrinkle-resistant and durable-press textile finishes.

Basic Information

Product Name	Tetrakis(Hydroxymethyl)Phosphonium Phosphate(3:1)
CAS No.	22031-17-0
Molecular Formula	C12H36O16P4
Molecular Weight	604.32 g/mol
Synonyms	THP Phosphate; Tetrakis(hydroxymethyl)phosphonium phosphate; THPP; Phosphonium, tetrakis(hydroxymethyl)-, phosphate (3:1); Fyrol® 51; Antiblaze® THP; 1,3,5-Triazine-2,4,6-triamine, polymer with formaldehyde, phosphoric acid and tetrakis(hydroxymethyl)phosphonium sulfate; Pliagard® THP
EINECS	244-706-0

Quality Control

Our Tetrakis(Hydroxymethyl)Phosphonium Phosphate(3:1) is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent purity, performance, and compliance with industry specifications for flame retardant applications. A comprehensive Certificate of Analysis (COA) detailing assay, pH, density, and other critical parameters is provided with every shipment to guarantee traceability and quality assurance.

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). Due to its chemical property of being easily oxidized, it is recommended to minimize headspace in opened containers and consider storage under an inert atmosphere for long-term bulk storage. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Clear to slightly yellow viscous liquid
Assay (Titration)	≥ 70.0 %
pH (10% solution)	5.0 - 7.0
Density (20°C)	1.30 - 1.40 g/mL
Phosphorus Content	Contact for details
Water Content	≤ 30.0 %
Identification (IR)	Conforms

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