Description

Hydrogenated Terphenyls are a class of high-performance, partially or fully saturated aromatic compounds derived from terphenyl, offering enhanced thermal and oxidative stability compared to their non-hydrogenated counterparts. This makes them a valuable component in demanding industrial applications where consistent performance under stress is critical. Key industries that utilize this material include advanced polymer manufacturing, high-temperature heat transfer systems, and specialty chemical synthesis.

Application

• As a high-temperature heat transfer fluid (HTF) in closed-loop systems for chemical processing and solar power plants.
• As a plasticizer and processing aid in the production of high-performance engineering plastics and elastomers to improve flexibility and thermal stability.
• As a chemical intermediate in the synthesis of specialty polymers, resins, and advanced lubricant additives.
• As a component in dielectric fluids and insulating oils for electrical applications requiring high thermal endurance.
• As a solvent or reaction medium for high-temperature organic synthesis and catalysis.
• As a base fluid for formulating high-stability greases and functional fluids used in extreme environments.

Basic Information

Product Name	Hydrogenated Terphenyls
CAS No.	37275-59-5
Molecular Formula	Typically C18H22 (for fully hydrogenated o-terphenyl)
Molecular Weight	~238.37 g/mol
Synonyms	Hydrogenated Terphenyl; Partially Hydrogenated Terphenyl; Terphenyl, hydrogenated; Therminol (commercial blend); High-Temperature Heat Transfer Fluid; Diphenylcyclohexane (isomer specific); Biphenyl, hexahydro-1,1':4',1''-terphenyl; Santotherm (commercial blend)
EINECS	Contact for details

Quality Control

Our Hydrogenated Terphenyls are produced under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Quality is verified through comprehensive analytical testing including gas chromatography (GC), infrared spectroscopy (IR), and viscosity measurement. A Certificate of Analysis (COA) detailing key parameters such as degree of hydrogenation, boiling range, and flash point is provided with each shipment to guarantee compliance with agreed specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from strong acids, organic solvents, and sources of ignition. As the material is easily oxidized, storage under an inert atmosphere (e.g., nitrogen) is recommended for long-term preservation of quality. Recommended storage temperature is between 15°C and 30°C.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to standard
Assay (GC Area %)	≥ 98.0% (Total Hydrogenated Terphenyls)
Boiling Range	330 - 380 °C
Flash Point (COC)	> 150 °C
Pour Point	< -20 °C
Viscosity @ 40°C	20 - 50 cSt
Water Content (KF)	≤ 0.05%

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