Home > Organosilicon Compounds> 1,1,1,3,5,7,7,7-Octamethyltetrasiloxane

1,1,1,3,5,7,7,7-Octamethyltetrasiloxane

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Origin: China

Cas No: 16066-09-4

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 80 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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CAS No.: 16066-09-4 Formula: C8H26O3Si4 Molecular Weight: 282.63200

Basic Info

Chemical Name	1,1,1,3,5,7,7,7-Octamethyltetrasiloxane
Synonyms	1,1,1,3,5,7,7,7-OctaMethyltetrasiloxane; 1,3-BIS(TRIMETHYLSILOXY)-1,3-DIMETHYLDISILOXANE; Tetrasiloxane, 1,1,1,3,5,7,7,7-octamethyl-;
CAS No.	16066-09-4
Molecular Formula	C8H26O3Si4
Molecular Weight	282.63200
PSA	27.69000
LogP	2.40660

Properties

Density	0.863
Boiling Point	92ºC
Melting Point	<0ºC
Flash Point	77.8ºC
Refractive Index	1.386

Safety Info

Safety Statements	S24/25
HS Code	2942000000
RIDADR	UN 1993
Risk Statements	R36/37/38

Synthesis Route

Dichloromethylsilane+chlorotrimethylsilane→1,1,1,3,5,7,7,7-Octamethyltetrasiloxane+2,4,6,8-tetramethyl-1,3,5,7,2λ3,4λ3,6λ3,8λ3-tetraoxatetrasilocane
Dichloromethylsilane+chlorotrimethylsilane→Heptamethyltrisiloxane+1,1,1,3,5,7,7,7-Octamethyltetrasiloxane
Dichloromethylsilane+chlorotrimethylsilane→Heptamethyltrisiloxane+1,1,1,3,5,7,7,7-Octamethyltetrasiloxane

Precursor

Dichloromethylsilane
Hexane
hexamethyldisiloxane
chlorotrimethylsilane

Downstream Product

hydroxy-(hydroxy-methyl-trimethylsilyloxysilyl)oxy-methyl-trimethylsilyloxysilane

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