Description

2-Biphenylyl Diphenyl Phosphate is an organophosphate compound widely utilized as a flame retardant and plasticizer. Its primary value lies in its ability to impart flame resistance to polymeric materials while maintaining favorable processing characteristics. This product is essential for manufacturers in the plastics, electronics, and construction industries seeking to enhance the fire safety of their products without compromising on performance.

Application

• Primary flame retardant and plasticizer for engineering plastics such as polycarbonate (PC), polyphenylene oxide (PPO), and their blends.
• Additive in wire and cable insulation and jacketing to meet stringent fire safety standards.
• Component in electronic encapsulants and circuit board laminates for improved flame retardancy.
• Used in synthetic resins and adhesives requiring enhanced fire resistance.
• Plasticizer for specialty PVC applications where low volatility and good compatibility are needed.
• Potential additive in coatings and films to reduce flammability.

Basic Information

Product Name	2-Biphenylyl Diphenyl Phosphate
CAS No.	132-29-6
Molecular Formula	C24H19O4P
Molecular Weight	402.38 g/mol
Synonyms	Biphenyl-2-yl diphenyl phosphate; 2-Phenylphenyl diphenyl phosphate; Diphenyl 2-biphenylyl phosphate; Phenyl diphenyl phosphate; o-Phenylphenyl diphenyl phosphate; BDP; FR-BDP; CDP (commercial designation)
EINECS	205-046-6

Quality Control

Our production of 2-Biphenylyl Diphenyl Phosphate adheres to strict quality management protocols to ensure batch-to-batch consistency and reliability. The product is manufactured and tested to meet relevant industry specifications for flame retardant additives. Certificates of Analysis (COA) documenting key parameters such as assay, color, acidity, and moisture content are provided with each 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 acids and incompatible organic solvents. For long-term storage, consider using an inert atmosphere to maintain product stability.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow viscous liquid
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0 %
Color (APHA)	≤ 50
Acidity (as H3PO4)	≤ 0.1 %
Moisture (KF)	≤ 0.1 %
Refractive Index (n20D)	1.555 - 1.560
Density (20°C)	1.20 - 1.25 g/cm³

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