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Catalogue

Synonym:2,4,6,8-tetraethenyl-2,4,6,8-tetramethyl-Cyclotetrasiloxane.
Tetravinyltetramethylcyclotetrasiloxane ;

Chemical Structure

Specialized manufacturers siloxane ec no 219-863-1 cas no 2554-06-5

Introduction

SI-1623 is a methyl vinyl cyclosiloxane.

Typical Physical Properties

Chemical Name:	Tetramethyl tetravinyl cyclotetrasiloxane
CAS No.:	2554-06-5
EINECS No.:	219-863-1
Empirical Formula:	C 12 H 24 O 4 Si 4
Molecular Weight:	344.7
Boiling Point:	112°C [760mmHg]
Flash Point:	>100°C
Color and Appearance:	Colorless transparent liquid
Density [25°C]:	0.970-1.000
Refractive Index [25°C]:	1.4300-1.4400 [20°C]
Grade:	Min. 95%
Effective content	Min. 99.5%

Application

SI-1623 is a very unique silicone raw material useful in the synthesis or manufacturing of reactive silioxane polymers with random vinyl functionality the backone of the silicone polymer chain.

SI-1623 may be used in formulating addition-curing silicone RTV or rubber formulations.

SI-1623 is a very effective inhibitor for a platinum catalyzed addition-curing Two-Part RTV. When used as an inhibitor,

SI-1623 is normally added to the crosslinker part of the formulation. Its high boiling point and low evaporation rate provides an extremely stable working time at ambient temperatures of the formulated Two-Part RTV.

Siloxanes are widely used in cosmetics, deodorant, water repelling windshield coating, food additives and some soaps.

Packing

Net weight 180Kg steel drum or 900Kg IBC container