Description

Dihexadecyl Phthalate is a high molecular weight diester of phthalic acid, widely recognized for its role as a specialty plasticizer and additive. This compound is valued for its excellent compatibility with high-performance polymers, providing enhanced flexibility, durability, and processing stability. It serves as a critical component for manufacturers in the plastics, coatings, and specialty chemical industries seeking to improve the physical properties of their products under demanding conditions.

Application

• Primary Plasticizer for high-temperature PVC, polyvinyl butyral (PVB), and other engineering polymers requiring low volatility and migration resistance.
• Functional Additive in specialty coatings and adhesives to improve film flexibility, adhesion, and long-term weatherability.
• Lubricant and Processing Aid in the manufacture of synthetic rubbers and elastomers to reduce internal friction during compounding and extrusion.
• Dielectric Fluid Component in specialized capacitor and electrical insulation applications due to its stable dielectric properties.
• Research & Development Chemical used in laboratories for synthesizing novel materials and studying polymer-plasticizer interactions.

Basic Information

Product Name	Dihexadecyl Phthalate
CAS No.	13372-18-4
Molecular Formula	C46H82O4
Molecular Weight	699.15 g/mol
Synonyms	Dioctyl Phthalate (DOP) [Note: Common name for Di(2-ethylhexyl) phthalate, often confused]; Dihexadecyl 1,2-Benzenedicarboxylate; Di-n-hexadecyl Phthalate; Phthalic Acid Dihexadecyl Ester; 1,2-Benzenedicarboxylic Acid, Dihexadecyl Ester; Di-cetyl Phthalate; DHP; Palmitic Acid, Phthalate (Ester)
EINECS	Contact for details

Quality Control

Our Dihexadecyl Phthalate is produced under a stringent quality management system to ensure batch-to-batch consistency and high purity. Each lot is analyzed against rigorous internal specifications, which typically include identity confirmation, assay, and critical impurity profiling. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at ambient temperature (15-25°C). Keep away from strong oxidizing agents and heat sources to maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms
Assay (GC or HPLC)	≥ 98.0%
Acidity (as Phthalic Acid)	≤ 0.05%
Water Content (KF)	≤ 0.1%
Color (APHA)	≤ 50

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