Description

Icosamethylnonasiloxane is a high-purity, linear organosilicon compound belonging to the polydimethylsiloxane (PDMS) family, specifically a nonamer. This product is valued for its exceptional thermal stability, low surface tension, and high compressibility, making it a versatile intermediate and functional fluid. It is primarily needed by manufacturers in the personal care, lubricants, and specialty chemical industries for formulating high-performance silicone oils, release agents, and dielectric fluids.

Application

• As a base fluid or intermediate in the synthesis of high-viscosity silicone oils and greases.
• As a release agent in plastic, rubber, and composite molding processes.
• As a dielectric coolant or heat transfer fluid in specialized electrical and electronic applications.
• As a formulation ingredient in personal care products, providing emolliency and spreadability.
• As a lubricant component for high-temperature and low-pressure mechanical systems.
• As a surface treatment agent to impart water repellency and smoothness to various substrates.
• As a solvent or carrier fluid in specialty chemical and pharmaceutical applications.
• As a standard or reference material in analytical and research laboratories.

Basic Information

Item	Details
Product Name	Icosamethylnonasiloxane
CAS No.	2652-13-3
Molecular Formula	C20H60O8Si9
Molecular Weight	667.39 g/mol
Synonyms	Nonamethyltetrasiloxane; Decamethyltetrasiloxane (common misnomer); MD7M; Polydimethylsiloxane, nonamer; Linear nonameric dimethylsiloxane; Silicone oil D7; SH 200 Fluid, 0.65 cSt; FZ-3197; Xiameter PMX-200 Silicone Fluid (0.65 cSt)
EINECS	220-190-8

Quality Control

Our Icosamethylnonasiloxane is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide a Certificate of Analysis (COA) with key parameters including assay, refractive index, viscosity, and specific gravity. Our quality commitment ensures the material meets the requirements for use as a high-purity intermediate in sensitive 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 oxidizing agents and heat sources. Under these conditions, the product has excellent shelf stability.

Specification

Item	Specification
Appearance	Colorless clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Refractive Index (n20D)	1.390 - 1.395
Specific Gravity (25°C)	0.915 - 0.925
Viscosity (25°C)	0.65 - 0.75 cSt
Water Content (KF)	≤ 0.05%

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