Description

Octachlorotrisiloxane is a key organosilicon intermediate and chlorosilane derivative with the CAS number 31323-44-1. This compound is valued for its high reactivity and serves as a versatile building block in the synthesis of more complex siloxane polymers and functional silicone materials. It is primarily utilized by manufacturers in the silicone industry, chemical research, and advanced material development sectors.

Application

• Silicone Polymer Synthesis: A fundamental precursor for the production of various linear and cyclic siloxane polymers.
• Surface Modification Agent: Used to impart hydrophobic or specific functional properties to inorganic surfaces like glass or silica.
• Chemical Intermediate: Serves as a reactive intermediate in organic synthesis and the preparation of other organosilicon compounds.
• Laboratory Research: Employed in R&D for developing new silicone-based materials, coatings, and elastomers.
• Specialty Silicone Fluids: Used in the formulation of heat-transfer fluids, dielectric fluids, and specialty lubricants.
• Adhesive & Sealant Formulations: Acts as a cross-linking agent or modifier in high-performance silicone adhesive and sealant systems.

Basic Information

Product Name	Octachlorotrisiloxane
CAS No.	31323-44-1
Molecular Formula	Cl8H2O2Si3
Molecular Weight	376.90 g/mol
Synonyms	1,1,1,3,5,5,5-Heptachloro-3-(trichlorosilyl)trisiloxane; Trisiloxane, 1,1,1,3,5,5,5-heptachloro-3-(trichlorosilyl)-; Chlorinated trisiloxane; 1,3,5-Tris(trichlorosilyl)cyclotrisiloxane (isomer); Hexachlorocyclotrisiloxane derivative; Perchlorotrisiloxane
EINECS	Contact for details

Quality Control

Our Octachlorotrisiloxane is produced and handled under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistency, purity, and compliance with agreed specifications. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis and degradation. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 95.0%
Chloride Content	Contact for details
Density (at 20°C)	~1.55 g/cm³
Water Content (Karl Fischer)	≤ 0.1%

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