Description

Bis(Nonafluorohexyl)Tetramethyldisiloxane is a high-performance fluorinated siloxane compound, distinguished by its unique combination of perfluoroalkyl chains and a disiloxane backbone. This structure provides exceptional chemical and thermal stability, low surface energy, and outstanding hydrophobicity and oleophobicity. It is a critical intermediate and functional additive for advanced material science, serving industries that require high-performance surface modification and release properties.

Application

• As a key intermediate in the synthesis of sophisticated fluorosilicone polymers and resins.
• As a surface treatment agent to impart water-repellent, oil-repellent, and anti-stick properties to textiles, paper, and membranes.
• As a high-performance additive in lubricants, greases, and coatings to enhance thermal stability and reduce friction.
• In the formulation of mold release agents for demanding industrial and composite manufacturing processes.
• As a modifier for elastomers and sealants to improve resistance to fuels, oils, and harsh chemicals.
• For research and development in electronics, where its properties are valuable for dielectric fluids and protective coatings.

Basic Information

Product Name	Bis(Nonafluorohexyl)Tetramethyldisiloxane
CAS No.	122179-35-5
Molecular Formula	C20H14F18OSi2
Molecular Weight	704.46 g/mol
Synonyms	1,1,1,3,3,5,5,5-Octafluoro-2,4-bis[(nonafluorohexyl)dimethylsilyloxy]-2,4-difluoropentane; 1,3-Bis[(nonafluorohexyl)dimethylsilyloxy]-1,1,3,3-tetramethyldisiloxane; Tetramethyl-bis(nonafluorohexyl)disiloxane; Bis(perfluorohexylethyldimethylsilyl) ether; Fluorinated siloxane F12; F12 Fluorosilicone intermediate; Dow Corning FS-1265 Fluid (related product class)
EINECS	Contact for details

Quality Control

Our production of Bis(Nonafluorohexyl)Tetramethyldisiloxane adheres to stringent quality management protocols. Each batch is analyzed to ensure high purity and consistency, with key parameters verified by advanced analytical techniques including GC, NMR, and FT-IR. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee material integrity for your critical applications.

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 acids, bases, and oxidizing agents. The container must be kept tightly sealed to prevent moisture absorption and potential contamination.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.05%
Density (at 20°C)	~1.6 g/mL
Refractive Index (n20D)	~1.33

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