Description

tert-Butylphenyl Diphenyl Phosphate is a high-performance organophosphate compound valued for its excellent flame-retardant and plasticizing properties. This chemical is a critical additive in polymer formulations, enhancing material safety and durability without compromising performance. It is primarily sought by manufacturers in the plastics, electronics, and construction industries for producing flame-retardant materials, flexible PVC, and engineering plastics.

Application

• As a flame retardant plasticizer in flexible polyvinyl chloride (PVC) for cables, wires, and flooring.
• As a functional additive in engineering thermoplastics and synthetic rubbers to improve fire resistance.
• In the formulation of fire-safe hydraulic fluids and lubricants for industrial machinery.
• As a synergistic agent in halogen-free flame retardant systems for electronic encapsulants and components.
• In the production of adhesives, sealants, and coatings requiring enhanced flame retardancy.
• For research and development of novel polymer composites with specific thermal and mechanical properties.

Basic Information

Product Name	tert-Butylphenyl Diphenyl Phosphate
CAS No.	56803-37-3
Molecular Formula	C22H23O4P
Molecular Weight	382.39 g/mol
Synonyms	Phosphoric acid, (1,1-dimethylethyl)phenyl diphenyl ester; 2-tert-Butylphenyl diphenyl phosphate; TBDP; tert-Butyl Phenyl Diphenyl Phosphate; Diphenyl (2-tert-butylphenyl) phosphate; Firemaster 680; BDP (commonly used abbreviation); CAS 56803-37-3
EINECS	260-359-6

Quality Control

Our tert-Butylphenyl Diphenyl Phosphate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including assay, impurity profiling, and physical property verification, to ensure it meets precise customer and industry specifications. Certificates of Analysis (COA) documenting purity, identity, and key parameters are available upon request.

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 such as strong oxidizing agents. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to minimize moisture absorption.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Acidity (as H3PO4)	≤ 0.1%
Water Content (KF)	≤ 0.1%
Refractive Index (20°C)	1.550 - 1.556
Density (20°C)	1.18 - 1.22 g/cm³
Flash Point	> 200 °C

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