2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE

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career henan chemical co

7YR

China

Chemical Properties

Product Name	2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE
CAS No	2370-88-9
EC-No	219-137-4
Min. Order	1G
Purity	99%
Supply Ability	100KG
Release date	2019/07/06

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2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE Basic information

Product Name:	2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE
Synonyms:	2,4,6,8-tetramethylcyclotetrasiloxane,mixtureofisomers;Cyclotetrasiloxane, 2,4,6,8-tetramethyl-;Tetramethylcyclotetrasiloxane;2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE, 9 9.5+%;1,3,5,7-TETRAMETHYLCYCLOTETRASILOXANE (2% CHLOROSILANE STABILIZED);1,3,5,7-TETRAMETHYLCYCLOTETRASILOXANE 95+%;2,4,6,8-Tetramethylcyclotetrasiloxane, 95%, mixture of isomers;1,3,5,7-Tetramethyl-2,4,6,8-tetraoxa-1,3,5,7-tetrasilacyclooctane
CAS:	2370-88-9
MF:	C4H16O4Si4
MW:	240.51
EINECS:	219-137-4
Product Categories:	Siloxanes
Mol File:	2370-88-9.mol

2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE Chemical Properties

Melting point	−69 °C(lit.)
Boiling point	134 °C(lit.)
density	0.986 g/mL at 25 °C(lit.)
refractive index	n20/D 1.387(lit.)
Fp	76 °F
storage temp.	Flammables area
Water Solubility	Miscible with most organic solvents. Immiscible with water.
Sensitive	Moisture Sensitive
BRN	1787074
InChIKey	BQYPERTZJDZBIR-UHFFFAOYSA-N
CAS DataBase Reference	2370-88-9(CAS DataBase Reference)

Safety Information

2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE Usage And Synthesis

Description	2, 4, 6, 8-TETRAMETHYLCYCLOTETRASILOXANE can be used as the precursor for the deposition of polysiloxane, cyclic siloxane, silicon dioxide, and gate dielectrics in thin-film transistors (TFT) (for example, for the preparation of ultralow dielectric constant pSiCOH film), and is a component of photochemically formed SiOX monolayers on TiO. It is a good impregnant of photoelectric material. It can be used for the manufacturing of modified siloxane with defined hydrogen content and chain quality.
Chemical Properties	Colorless or yellowish transparent liquid
Uses	2,4,6,8-Tetramethylcyclotetrasiloxane can occur addition reaction with unsaturated alkenes, so it’s utilized widely to synthesize variety functional reactive silicone fluids which is used to form silicone block copolymer, or used as crosslinker of vinyl addition silicone rubber. Tetramethyl-cyclotetrasiloxane is a good impregnant of photoelectric material. It is used to manufacture of modified siloxane with defined hydrogen content and chain quantity. It is also used in production of silicone polymers and acts as a precursor for the deposition of polysiloxane, cyclic siloxane, silicon dioxide, oxycarbide thin films with low dielectric constant for microelectronics and semiconductors.

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