Description

Hydroquinone Bis(Diphenyl Phosphate) is a specialized organophosphorus compound widely used as a flame retardant and plasticizer additive. This high-performance chemical is valued for its ability to impart excellent flame-retardant properties while maintaining the physical integrity of polymer matrices. It is a critical material for manufacturers in the plastics, electronics, and construction industries seeking to enhance product safety and meet stringent fire safety regulations.

Application

• As a reactive or additive flame retardant in engineering thermoplastics like polycarbonate (PC), polyphenylene oxide (PPO), and their blends.
• As a plasticizer and stabilizer in PVC and other vinyl polymer formulations to improve flexibility and thermal stability.
• In the production of flame-retardant coatings and adhesives for textiles, electronics, and building materials.
• For the manufacturing of fire-safe wire and cable insulation and electronic component casings.
• As an intermediate in the synthesis of other specialty phosphorus-based chemicals.
• In thermoset resins for composites used in automotive and aerospace applications requiring low flammability.

Basic Information

Product Name	Hydroquinone Bis(Diphenyl Phosphate)
CAS No.	68874-96-4
Molecular Formula	C30H24O8P2
Molecular Weight	574.45 g/mol
Synonyms	HQ-BDP; Hydroquinol bis(diphenyl phosphate); 1,4-Phenylenebis(diphenyl phosphate); BDP-HQ; Tetraphenyl Hydroquinone Diphosphate; Flame Retardant BDP; Phosphoric Acid, 1,4-Phenylenetetraphenyl Ester; FR-HQ
EINECS	Contact for details

Quality Control

Our Hydroquinone Bis(Diphenyl Phosphate) is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including assay, purity, and impurity profile analysis, to ensure it meets precise customer specifications and industry benchmarks. Certificates of Analysis (COA) documenting key parameters such as phosphorus content, melting point, and color are available upon request.

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 oxidizers, heat, and ignition sources.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	105 - 115 °C
Phosphorus Content	10.5 - 11.0 %
Loss on Drying	≤ 0.5 %
Residue on Ignition	≤ 0.1 %

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