Description

Dowco 439 is a high-performance, organophosphorus chemical compound widely recognized for its efficacy as a flame retardant and plasticizer. This product is essential for manufacturers seeking to enhance the fire safety and material properties of polymer systems without compromising performance. It is primarily utilized by the plastics, textiles, and construction materials industries to meet stringent safety and regulatory standards.

Application

• As a flame retardant additive in polyurethane foams, PVC, and other thermoplastics.
• As a plasticizer to improve flexibility and durability in polymer formulations.
• In the production of fire-resistant coatings and paints for industrial and construction applications.
• For enhancing the fire safety of textiles and fabrics, including upholstery and protective clothing.
• In the formulation of adhesives and sealants requiring improved flame retardancy.
• As a component in wire and cable insulation materials to meet fire safety codes.

Basic Information

Product Name	Dowco 439
CAS No.	94336-05-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Phosphonic acid, (1-methylethyl)-, bis(2-chloroethyl) ester; Isopropylphosphonic acid bis(2-chloroethyl) ester; Bis(2-chloroethyl) isopropylphosphonate; Dow Chemical 439; Flame Retardant 439; FR-439; Isopropylated phosphonate ester
EINECS	Contact for details

Quality Control

Our Dowco 439 is manufactured under a rigorous quality management system to ensure batch-to-batch consistency and high purity. All products undergo comprehensive analytical testing, including assay and impurity profile determination. Certificates of Analysis (COA) documenting compliance with agreed specifications are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizers, heat, and ignition sources.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Density (20°C)	Contact for details
Refractive Index (20°C)	Contact for details
Water Content (KF)	≤ 0.5%

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