Description

Tetrakis(Hydroxymethyl)Phosphoniumbromide is a versatile organophosphorus compound primarily used as a reactive intermediate and a flame-retardant precursor. Its significance lies in its ability to act as a highly effective cross-linking agent and a source of phosphonium functionality for various chemical syntheses. This product is essential for manufacturers in the textile, polymer, and specialty chemical industries seeking to impart durable flame resistance or create novel cationic structures.

Application

• As a key intermediate in the synthesis of durable flame retardants for textiles and polymers.
• In the production of cationic starches and other modified polysaccharides for paper and textile sizing.
• As a cross-linking agent for cellulose and protein-based materials to enhance wet strength and durability.
• For the preparation of quaternary phosphonium salts with antimicrobial properties.
• In research and development of novel organophosphorus compounds for material science.
• As a catalyst or co-catalyst in specific organic synthesis reactions.

Basic Information

Product Name	Tetrakis(Hydroxymethyl)Phosphoniumbromide
CAS No.	5940-69-2
Molecular Formula	C4H12BrO4P
Molecular Weight	235.02 g/mol
Synonyms	THP Bromide; Tetrakis(hydroxymethyl)phosphonium bromide; Phosphonium, tetrakis(hydroxymethyl)-, bromide; THPB; Tetrahydroxymethylphosphonium bromide; NCI-C60515; NSC 88166; (Hydroxymethyl)phosphonium bromide tetramer
EINECS	227-698-3

Quality Control

Our Tetrakis(Hydroxymethyl)Phosphoniumbromide is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. A Certificate of Analysis (COA) detailing key parameters such as assay, bromide content, and moisture is provided with every shipment to guarantee compliance with your specifications.

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 must be kept in its original packaging or a suitable moisture-proof container to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 95.0%
Bromide Content	Conforms to theoretical
Water Content (KF)	≤ 5.0%
pH (10% solution)	3.0 - 5.0

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