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Gelest SIT7278.0

CAS Number
17082-47-2
Chemical Name
Tetrakis(dimethylsilyloxy)silane
Chemical Family
Silanes
Molecular Formula
C₈H₂₈O₄Si₅

Gelest TETRAKIS(DIMETHYLSILOXY)SILANE (SIT7278.0) is used as a crosslinker for vinyl functional silicones. It is a high-molecular-weight silane-reducing agent.

Properties

Physical Form
Liquid

Product families

Elastomers — Elastomer Additives
  • Catalysts Initiators & Crosslinkers

Other characteristics

Functions
Crosslinking Agent
Compatible Polymers & Resins
Silicones
Applications
  • Crosslinker for vinyl functional silicones
  • High molecular weight silane reducing agent
Technology
Elastomers
HIGHLIGHTS

Siloxane-Based Silane Reducing Agent. Organosilanes are hydrocarbon-like and possess the ability to serve as both ionic and free-radical reducing agents. These reagents and their reaction by-products are safer and more easily handled and disposed than many other reducing agents. The metallic nature of silicon and its low electronegativity relative to hydrogen lead to polarization of the Si-H bond yielding a hydridic hydrogen and a milder reducing agent compared to aluminum-, boron-, and other metal-based hydrides.

Standard Packaging
  • 25 g
  • 100 g
  • 2.5 kg
  • 14 kg
Chemical Inventories
TSCA (USA)
Compatible Polymers and Resins
Silicones
Plastics and Elastomers Functions
Crosslinking Agent

Technical data

Table 1 of 2

1 row
CharacteristicValueUnit
Boiling Point188 - 190°C

Table 2 of 2

7 rows
CharacteristicValueUnit
Molecular Weight328.73g/mol
Purity0.97—
Density0.886g/ml
Flash Point67.0°C
Refractive Index (at 20°C)1.3841—
Viscosity (at 25°C)1.1cSt
Hydrolytic Sensitivity3 (Reacts with aqueous base)—

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