Description

Triacontamethylcyclopentadecasiloxane is a high molecular weight, cyclic siloxane polymer, specifically a member of the cyclosiloxane family. This compound is valued for its exceptional thermal stability, low surface tension, and high lubricity, making it a versatile functional fluid and intermediate. It is primarily utilized in the production of high-performance silicone polymers, as a base fluid for specialty lubricants and release agents, and as an additive in personal care formulations to impart a smooth, silky feel.

Application

• Silicone Polymer Production: Acts as a key monomer or intermediate in the synthesis of high-consistency rubber (HCR) and other specialty silicone elastomers.
• Specialty Lubricants & Greases: Serves as a base fluid for high-temperature, non-reactive lubricants used in demanding industrial and aerospace applications.
• Mold Release Agents: Used in formulations for plastic, rubber, and composite molding where excellent release and non-transfer properties are required.
• Personal Care & Cosmetics: Functions as a conditioning agent in hair care and skincare products to provide enhanced shine, softness, and reduced tackiness.
• Surface Treatment & Coatings: Imparts water repellency and improved slip properties to textiles, paper, and various substrates.
• Dielectric Fluids: Suitable for use in specific electrical or electronic cooling and insulating applications due to its stability.
• Chemical Intermediate: Employed in further chemical reactions to modify surface properties or create custom silicone copolymers.

Basic Information

Product Name	Triacontamethylcyclopentadecasiloxane
CAS No.	23523-14-0
Molecular Formula	C30H90O15Si15
Molecular Weight	1111.95 g/mol
Synonyms	Cyclopentadecamethylpentadecasiloxane; D15 Cyclic Siloxane; 15-Membered Cyclic Siloxane; Cyclic Pentadecamethylsiloxane; Cyclic Polydimethylsiloxane (cD15); Decamethylcyclopentasiloxane Dimer; Cyclomethicone D15
EINECS	Contact for details

Quality Control

Our Triacontamethylcyclopentadecasiloxane is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, viscosity, and cyclic content. A Certificate of Analysis (COA) detailing key parameters is provided with every shipment to guarantee traceability and consistency for your formulation needs.

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 and incompatible organic solvents. For long-term storage, consider using an inert atmosphere to prevent potential moisture uptake.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Viscosity (25°C)	Contact for details
Refractive Index (n20D)	Contact for details
Density (25°C)	Contact for details
Water Content (KF)	≤ 0.1%

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