Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Evonik Dynasylan HMDS Silane Coupling Agent

Evonik Dynasylan HMDS (Hexamethyldisilazane) is a highly effective silylating agent and surface modifier that provides exceptional hydrophobic properties to various substrates. This versatile organosilicon compound reacts with proton-containing materials to form stable trimethylsilyl derivatives, making it invaluable for surface treatment, chemical synthesis, and analytical applications across multiple industries

Features Of Evonik Dynasylan HMDS Silane Coupling Agent

  1. Excellent Silylation - Effective hydroxyl group protection and derivatization

  2. Super Hydrophobicity - Creates water-repellent surfaces on various materials

  3. High Reactivity - Rapid reaction with proton-containing compounds

  4. Versatile Application - Suitable for organic and inorganic substrates

  5. Pharmaceutical Grade - Meets industry standards for pharmaceutical applications

Typical Applications Of Evonik Dynasylan HMDS Silane Coupling Agent

  1. Surface Hydrophobization - Water-repellent treatment for silica and fillers

  2. Pharmaceutical Synthesis - Protecting group for hydroxyl functions in APIs

  3. Microelectronics Manufacturing - Adhesion promotion in semiconductor processes

  4. Analytical Chemistry - Derivatization agent for GC analysis of polar compounds

  5. Polymer Modification - Improved dispersion and processing of filled polymers

Specifications Of Evonik Dynasylan HMDS Silane Coupling Agent

Chemical NameHexamethyldisilazane-
CAS No.999-97-3-
AppearanceColorless liquidVisual
Purity≥ 98.0%GC Analysis
Density (25°C)0.77-0.79 g/cm³ISO 3675
Refractive Index (20°C)1.405-1.408ISO 2806
Boiling Point125-127°CISO 4626
Flash Point26°CISO 2719
Water Content≤ 0.1%Karl Fischer


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