Description

Siloxanes And Silicones, Di-Me, 3-Hydroxypropyl Group-Terminated, Ethoxylated is a specialized organomodified silicone fluid, distinguished by its reactive hydroxypropyl end groups and hydrophilic ethoxylated side chains. This unique molecular architecture provides a critical balance of silicone-derived properties—such as low surface tension and thermal stability—with enhanced water solubility and compatibility with polar systems. It is an essential functional additive and intermediate for formulators in the personal care, coatings, and textile industries seeking to improve softness, lubrication, and surface modification. The compound is supplied under CAS No. 102783-01-7.

Application

• Personal Care & Cosmetics: Acts as a premium emollient, conditioner, and spreading agent in hair care products (shampoos, conditioners), skin creams, lotions, and sunscreens, providing a non-greasy, silky feel and improved wet combability.
• Textile & Fiber Processing: Used as a softener and lubricant for synthetic and natural fibers, enhancing fabric hand feel, reducing fiber breakage during spinning, and improving sewability.
• Coatings & Inks: Functions as a flow and leveling agent, slip additive, and mar-resistance aid in water-based and solvent-based coating systems, improving surface smoothness and gloss.
• Polyurethane Foam Stabilization: Serves as a key surfactant in the production of flexible polyurethane foam, helping to control cell structure and ensure uniform foam rise.
• Industrial Lubricants & Release Agents: Employed as a component in specialty lubricants, mold release agents, and anti-foam formulations where compatibility with aqueous systems is required.
• Chemical Intermediate: The terminal hydroxyl groups provide reactive sites for further chemical modification, enabling the synthesis of custom silicone polyethers, cross-linkable polymers, and graft copolymers.

Basic Information

Product Name	Siloxanes And Silicones, Di-Me, 3-Hydroxypropyl Group-Terminated, Ethoxylated
CAS No.	102783-01-7
Molecular Formula	Contact for details
Molecular Weight	Varies by degree of polymerization and ethoxylation
Synonyms	Polyether modified silicone; Hydroxypropyl terminated polydimethylsiloxane, ethoxylated; Silicone polyether; Polyalkyleneoxide modified heptamethyltrisiloxane; PEG/PPG-modified silicone; Dimethicone copolyol (related class); Hydroxy-functional silicone fluid; Ethoxylated hydroxypropyl silicone; Alkoxylated polysiloxane; Reactive silicone polyol
EINECS	Contact for details

Quality Control

Our Siloxanes And Silicones, Di-Me, 3-Hydroxypropyl Group-Terminated, Ethoxylated is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in key parameters such as hydroxyl value, viscosity, ethoxylate content, and appearance. Certificates of Analysis (COA) documenting these specifications are available for every shipment. Our production adheres to relevant ISO standards, and the product can be supplied in grades suitable for industrial and cosmetic applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (typically 15-25°C). This material is hygroscopic (moisture-sensitive). Keep away from strong oxidizing agents and acids. Under these conditions, the product is typically stable for at least 24 months from the date of manufacture. For long-term storage under inert atmosphere, please contact us for specific recommendations.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Viscosity @ 25°C	Specification available upon request
Hydroxyl Value (mg KOH/g)	Specification available upon request
Water Content (Karl Fischer)	< 0.5%
Specific Gravity @ 25°C	~1.00 - 1.05
Refractive Index @ 25°C	~1.410 - 1.440
Ethylene Oxide (EO) Content	Specification available upon request

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