Description

Tetrakis(Hydroxymethyl)Phosphonium Sulfate Urea Polymer is a high-performance, water-soluble polymer widely used as a durable flame retardant and cross-linking agent. This compound is valued for its ability to impart permanent flame resistance to cellulosic materials like cotton and paper, making it a critical component in demanding industrial applications. It is primarily sought by manufacturers in the textile finishing, paper production, and specialty polymer synthesis industries.

Application

• Flame Retardant for Textiles: Primary application for imparting durable flame resistance to cotton, rayon, and other cellulosic fabrics.
• Paper Treatment: Used to produce flame-retardant papers for specialty packaging, wall coverings, and electrical insulation.
• Wood & Composite Treatment: Applied as a fire-retardant treatment for wood, particleboard, and other composite materials.
• Cross-linking Agent: Functions as a reactive resin component in polymer systems to enhance durability and performance.
• Adhesive & Binder Formulation: Used in the production of specialty adhesives and binders requiring enhanced fire safety properties.
• Oilfield & Drilling Fluids: Employed as a component in certain drilling mud formulations for its rheological and stabilizing properties.

Basic Information

Product Name	Tetrakis(Hydroxymethyl)Phosphonium Sulfate Urea Polymer
CAS No.	63502-25-0
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	THPS-Urea Polymer; Tetrakis(hydroxymethyl)phosphonium sulfate-urea condensate; THPS-Urea Condensate; Phosphonium, tetrakis(hydroxymethyl)-, sulfate (2:1), polymer with urea; Flame Retardant THPS-U; P-1-Phosphonium, tetrakis(hydroxymethyl)-, sulfate (2:1), polymer with urea; THPS-Urea adduct; Proban®-type polymer (generic)
EINECS	Contact for details

Quality Control

Our Tetrakis(Hydroxymethyl)Phosphonium Sulfate Urea Polymer is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against key parameters for identity, purity, and application performance. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance and regulatory compliance needs.

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); ensure containers are kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid or solid
Identification (IR)	Conforms
Assay (Active Content)	≥ 65%
pH (as supplied)	3.0 - 5.0
Solubility	Completely soluble in water
Viscosity	Contact for details

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