Description

Ethane-1,2-Diylbis(Phenylphosphinic Acid) CAS NO 1089-77-6 is a high-purity organophosphorus compound widely recognized as a highly effective flame retardant synergist and a versatile intermediate in specialty polymer synthesis. Its primary commercial value lies in its ability to impart superior flame resistance and thermal stability to engineering plastics and epoxy resins, significantly enhancing product safety and performance. This chemical is essential for manufacturers in the polymer, electronics, and advanced materials industries seeking to meet stringent fire safety regulations.

Application

• Flame Retardant Synergist: A key component in halogen-free flame retardant systems for engineering thermoplastics like polyamides (PA), polyesters (PBT, PET), and epoxy resins.
• Polymer Additive: Used to improve the thermal stability and fire resistance of high-performance polymers for electrical and electronic components.
• Chemical Intermediate: Serves as a crucial building block for synthesizing more complex organophosphorus compounds, including novel flame retardants and ligands.
• Curing Agent/Co-curing Agent: Employed in the formulation of specialty epoxy resin systems to modify curing characteristics and enhance final material properties.
• Research & Development: Utilized in laboratories for developing new materials with tailored flame-retardant and mechanical properties.

Basic Information

Product Name	Ethane-1,2-Diylbis(Phenylphosphinic Acid)
CAS No.	1089-77-6
Molecular Formula	C14H16O4P2
Molecular Weight	326.22 g/mol
Synonyms	1,2-Ethanediylbis(phenylphosphinic acid); Ethylene bis(phenylphosphinic acid); Phenylphosphinic acid, 1,2-ethanediyl ester; NSC 163083; Bis(phenylphosphinic acid) ethylene ester; Ethylenebis(phenylphosphinic acid); EDDPA; 1,2-Bis(phenylphosphinyl)ethane
EINECS	214-148-5

Quality Control

Our production of Ethane-1,2-Diylbis(Phenylphosphinic Acid) adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay, identification, and impurity profiling. Certificates of Analysis (COA) documenting all test results are provided with every shipment to guarantee compliance with your technical requirements.

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). Keep away from strong oxidizing agents and strong bases.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm

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