Description

Phosphoric Acid, Hexadecyl Diphenyl Ester is a high-purity organophosphorus compound designed for advanced industrial applications. This specialty chemical serves as a highly effective acid scavenger, stabilizer, and intermediate, offering superior performance in demanding formulations. It is essential for manufacturers in the polymer, lubricant, and specialty chemical industries seeking to enhance product stability and longevity under harsh conditions.

Application

• Polymer Additive: Acts as a processing stabilizer and acid scavenger in polyolefins (e.g., PP, PE) and engineering plastics to prevent catalyst residue degradation.
• Lubricant & Grease Formulation: Used as an extreme pressure (EP) additive and anti-wear agent in synthetic lubricants and industrial greases.
• Chemical Intermediate: Serves as a key building block for the synthesis of more complex phosphorous-based compounds, including other phosphates and phosphonates.
• Flame Retardant Synergist: Employed in halogen-free flame retardant systems for plastics and textiles to improve char formation and thermal stability.
• Metalworking Fluids: Functions as a corrosion inhibitor and lubricity enhancer in cutting oils and hydraulic fluids.

Basic Information

Product Name	Phosphoric Acid, Hexadecyl Diphenyl Ester
CAS No.	56827-92-0
Molecular Formula	C34H55O4P
Molecular Weight	558.78 g/mol
Synonyms	Hexadecyl Diphenyl Phosphate; Diphenyl Hexadecyl Phosphate; Phosphoric Acid Diphenyl Hexadecyl Ester; Cetyl Diphenyl Phosphate; 1-Hexadecanol, Diphenyl Phosphate; Diphenyl Cetyl Phosphate; O,O-Diphenyl O-Hexadecyl Phosphate; Phenyl Hexadecyl Phenyl Phosphate
EINECS	Contact for details

Quality Control

Our production of Phosphoric Acid, Hexadecyl Diphenyl Ester adheres to stringent quality management protocols. Every batch is analyzed using advanced techniques including HPLC, GC, and NMR to ensure consistent purity and composition. Certificates of Analysis (COA) documenting identity, assay, and impurity profiles are provided with each shipment to guarantee compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and 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	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0 %
Acid Value	≤ 1.0 mg KOH/g
Water Content (KF)	≤ 0.2 %
Refractive Index (20°C)	1.505 - 1.515
Density (20°C)	1.00 - 1.05 g/cm³

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