Description

Tris(3,5,5-Trimethylhexyl) Phosphate CAS NO 72386-53-9 is a high-purity organophosphate ester, specifically a trialkyl phosphate, valued for its excellent solvency and plasticizing properties. This compound serves as a critical functional additive and intermediate in advanced material formulations. It is primarily sought by manufacturers in the polymer, lubricant, and specialty chemical industries seeking to enhance product performance and process efficiency.

Application

• Plasticizer & Flame Retardant Synergist: Used in PVC, cellulose acetate, and synthetic rubber formulations to improve flexibility and provide flame-retardant characteristics.
• Lubricant & Hydraulic Fluid Additive: Functions as an anti-wear agent and extreme pressure additive in synthetic lubricants and fire-resistant hydraulic fluids.
• Solvent & Extraction Agent: Employed as a solvent for resins, gums, and cellulose derivatives, and as an extractant in metal separation processes.
• Chemical Intermediate: Serves as a key building block in the synthesis of more complex organophosphorus compounds for various industrial applications.
• Adhesive & Sealant Formulation: Imparts adhesion promotion and viscosity modification in high-performance adhesive and sealant systems.

Basic Information

Product Name	Tris(3,5,5-Trimethylhexyl) Phosphate
CAS No.	72386-53-9
Molecular Formula	C27H57O4P
Molecular Weight	476.71 g/mol
Synonyms	Tris(3,5,5-Trimethylhexyl) Phosphate; Phosphoric Acid Tris(3,5,5-Trimethylhexyl) Ester; TTMHP; Isohexyl Phosphate (mixed isomers); Triisononyl Phosphate (C9-rich); TOF (Tri-iso-octyl phosphate analog); 3,5,5-Trimethylhexyl Phosphate Ester; Tris(3,5,5-Trimethyl-1-hexyl) Phosphate
EINECS	Contact for details

Quality Control

Our Tris(3,5,5-Trimethylhexyl) Phosphate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure consistency and high purity. Certificates of Analysis (COA) detailing key specifications such as assay, color, acidity, and water content are provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong bases and incompatible materials. For long-term storage, consider under an inert atmosphere to maintain optimal quality.

Specification

Item	Specification
Appearance	Clear, Colorless to Pale Yellow Liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Acidity (as H3PO4)	≤ 0.1%
Water Content (KF)	≤ 0.1%
Color (APHA)	≤ 50
Specific Gravity (20°C)	0.920 - 0.940
Refractive Index (20°C)	1.440 - 1.450

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