Description

Phosphorous Acid Tris[2,2-Bis[(2,3-Dibromopropoxy)Methyl]Butyl] Ester is a specialized organophosphorus compound with a complex, high-molecular-weight structure, functioning as a reactive intermediate and flame retardant synergist. Its primary commercial value lies in its ability to impart significant flame-retardant properties to polymers, particularly through bromine and phosphorus synergy, while also serving as a key building block for advanced material synthesis. This product is essential for manufacturers in the polymer and plastics industries, as well as for chemical companies developing high-performance, halogenated flame retardants and specialty additives.

Application

• Reactive Flame Retardant for Polymers: Acts as a key monomer or additive in the production of flame-retardant polyurethanes, polyesters, and epoxy resins.
• Synergist in Halogen-Phosphorus Systems: Enhances the flame-retardant efficiency of other brominated compounds in polymer blends and coatings.
• Chemical Intermediate: Used in the synthesis of more complex phosphorus-containing compounds for specialized applications.
• Additive for Engineering Plastics: Incorporated into high-performance thermoplastics to improve fire safety ratings without severely compromising mechanical properties.
• Component in Intumescent Coatings: Contributes to the char-forming layer in fire-protective paints and coatings for structural materials.
• Cable and Wire Insulation: Used in formulations for flame-retardant insulation materials in electrical applications.

Basic Information

Product Name	Phosphorous Acid Tris[2,2-Bis[(2,3-Dibromopropoxy)Methyl]Butyl] Ester
CAS No.	68555-85-1
Molecular Formula	C33H63Br6O9P
Molecular Weight	1175.2 g/mol
Synonyms	Tris[2,2-bis[(2,3-dibromopropoxy)methyl]butyl] phosphite; Phosphorous Acid Tris(2,2-Bis[(2,3-Dibromopropoxy)Methyl]Butyl) Ester; 2,2-Bis[(2,3-dibromopropoxy)methyl]butyl phosphite (tris-); Tris(2,2-bis((2,3-dibromopropoxy)methyl)butyl) Phosphite; FR-1033 (potential trade name); Brominated Phosphite Ester; Pentaerythritol derivative, brominated phosphite
EINECS	Contact for details

Quality Control

Our production of Phosphorous Acid Tris[2,2-Bis[(2,3-Dibromopropoxy)Methyl]Butyl] Ester adheres to strict quality protocols to ensure batch-to-batch consistency and performance reliability for industrial applications. Each lot is analyzed to confirm critical parameters such as bromine content, phosphorus content, and purity. Certificates of Analysis (COA) detailing assay, identity, and key impurity profiles are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from strong bases and incompatible materials. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to minimize exposure to moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Bromine Content	40.0 - 42.0 %
Phosphorus Content	2.5 - 2.8 %
Acidity (as H3PO3)	≤ 0.5 %
Water Content (KF)	≤ 0.2 %

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