Cyclopentasiloxane — D5 / CAS 541-02-6

Description

1. Product Overview

Cyclopentasiloxane (D5) is a volatile silicone fluid with excellent spreading properties, low surface tension, and a smooth sensory profile, widely used across personal care, cosmetics, and industrial formulation markets. It serves as a high-performance carrier, conditioning agent, and processing aid in applications requiring fast evaporation, enhanced texture, and superior compatibility. Its combination of volatility, stability, and silicone performance makes it a preferred ingredient for premium formulations and advanced industrial solutions. As global demand increases for high-performance silicones, D5 remains a strategically important material for manufacturers seeking efficiency, product quality, and formulation flexibility.

2. Key Specifications & Technical Characteristics

• Chemical Composition: Decamethylcyclopentasiloxane (D5), a cyclic silicone compound with molecular formula C₁₀H₃₀O₅Si₅
• CAS Number: 541-02-6
• Purity / Grade: Typically available at ≥99% purity, cosmetic grade, industrial grade, and specialty formulation grades
• Physical Form: Clear, colorless, low-viscosity silicone liquid
• Odor: Nearly odorless
• Appearance: Transparent fluid with excellent spreading characteristics
• Molecular Weight: Approximately 370.77 g/mol
• Boiling Point: Approximately 210°C
• Density: Approximately 0.95 g/cm³ at 25°C
• Viscosity: Low viscosity, typically around 3–5 cSt at 25°C
• Solubility: Insoluble in water; compatible with many organic and silicone-based materials
• Packaging Options: 190 kg drums, 200 kg drums, IBC totes, and bulk tanker supply
• Shelf Life: Typically 24–36 months when stored in sealed containers under recommended storage conditions

3. Core Industrial Applications

• Personal Care & Cosmetics: Used as a carrier fluid and sensory enhancer in skin creams, lotions, sunscreens, makeup products, hair conditioners, and antiperspirants to provide smooth application and a lightweight feel.
• Silicone Formulations: Functions as a diluent and processing aid in silicone elastomers, sealants, coatings, and specialty formulations.
• Industrial Coatings: Improves spreading, surface finish, and slip properties in protective coatings, polishes, and surface treatment products.
• Textile & Leather Processing: Applied as a softening and finishing agent to enhance smoothness, flexibility, and surface performance.
• Performance Advantages: Provides rapid evaporation, excellent spreading, low residue, thermal stability, and compatibility compared with many conventional organic carriers.

4. Competitive Advantages

• Consistent Quality Performance: Manufactured under controlled processes to ensure reliable purity, viscosity, and formulation compatibility.
• Global Supply Reliability: Supported by scalable production capacity and dependable international sourcing networks.
• Logistics Capability: Available in multiple packaging formats with bulk shipment options for industrial buyers.
• Cost Efficiency: Offers high formulation efficiency due to its low usage levels, multifunctional performance, and processing benefits.
• Sustainability Benefits: Enables lightweight, efficient formulations with reduced heavy residue and improved product aesthetics.
• Technical Documentation Support: Available with Certificate of Analysis (COA), Safety Data Sheet (SDS), specification sheets, and quality documentation for regulatory compliance.

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): BULK 20 MT
• Loading Capacity: Approximately 20 MT per 20-foot container (depending on packaging configuration and shipping requirements)