Description

Diisononyl Phthalate (DINP) is a high-molecular-weight phthalate ester plasticizer, recognized for its excellent performance and versatility in polymer modification. Its primary value lies in imparting superior flexibility, durability, and processability to polyvinyl chloride (PVC) and other polymer systems. This product is essential for manufacturers in the plastics, automotive, construction, and wire & cable industries seeking reliable and efficient plasticizing solutions.

Application

• Primary plasticizer for flexible PVC (Polyvinyl Chloride) compounds in flooring, wall coverings, and synthetic leather.
• Critical component in the production of wire and cable insulation and jacketing, providing long-term flexibility and electrical properties.
• Used in automotive interiors for dashboards, door panels, and sealants, meeting requirements for low fogging and volatility.
• Formulation of polymer blends and synthetic rubbers to enhance low-temperature performance and elasticity.
• Manufacturing of hoses, tubes, and industrial films requiring durability and resistance to extraction.
• Production of adhesives, sealants, and caulks to improve workability and final product properties.

Basic Information

Product Name	Diisononyl Phthalate
CAS No.	28553-12-0
Molecular Formula	C26H42O4
Molecular Weight	418.61 g/mol
Synonyms	DINP; 1,2-Benzenedicarboxylic acid, diisononyl ester; Diisononyl phthalate; Phthalic acid, diisononyl ester; Jayflex DINP; Palatinol N; Vestinol 9; Unimoll 66; Hexamoll DINP; DINP-E (European isononyl alcohol type)
EINECS	249-079-5

Quality Control

Our Diisononyl Phthalate is manufactured under a stringent quality management system to ensure batch-to-batch consistency and high purity. Production adheres to relevant industry standards, and the product is compliant with major global regulatory frameworks such as REACH. A comprehensive Certificate of Analysis (COA), detailing purity, physical properties, and impurity profiles, is provided with each shipment to guarantee supply reliability and technical specification compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (typically 15-25°C). Keep away from strong oxidizing agents, heat, and open flames. For long-term storage, ensure containers are kept sealed to prevent moisture absorption.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow viscous liquid
Identification (IR)	Conforms
Assay (GC)	≥ 99.0%
Color (APHA)	≤ 30
Acidity (as Phthalic Acid)	≤ 0.01%
Water Content (KF)	≤ 0.05%
Specific Gravity (20/20°C)	0.970 - 0.976
Refractive Index (20°C)	1.483 - 1.487
Flash Point (PMCC)	≥ 200 °C

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