Home > Organosilicon Compounds> Octamethyltrisiloxane

Octamethyltrisiloxane

Get Latest Price >

FOB Price contact us for price

Origin: China

Cas No: 107-51-7

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 100 mt/month

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

Vendor:

Payment Terms:

Inquiry now

* Send an Inquiry to us

Add to wishlist

* Name your price
* Start order doesn't mean buying now

Products Specification
Product Description

Property

CAS No.: 107-51-7 Formula: C8H24O2Si3 Molecular Weight: 236.53100

Description

A linear silicone oligomer. Studies demonstrate that it is able to maintain the conformational stability of certain adsorbed proteins such as bovine serum albumin (BSA). Used in the methylation of mercury(II) salts.

Basic Info

Chemical Name	Octamethyltrisiloxane
Synonyms	Trisiloxane, octamethyl-; POLY(DIMETHYLSILOXANE), HYDROXY TERMINATED; Poly(Dimethylsiloxane); POLY(DIMETHYLSILOXANE),HYDROXY TERMINATED; Dimethylbis(trimethylsilyloxy)silane;
CAS No.	107-51-7
Molecular Formula	C8H24O2Si3
Molecular Weight	236.53100
PSA	18.46000
LogP	3.39120

Properties

Appearance & Physical State	clear colourless liquid
Density	0.82
Boiling Point	153ºC at 760 mmHg
Melting Point	-82ºC
Flash Point	29ºC
Refractive Index	1.384
Storage Condition	Flammables area
Vapor Density	>1 (vs air)
Vapor Pressure	4.36mmHg at 25°C

Safety Info

Hazard Class	3.2
Safety Statements	23-24/25
HS Code	2934999090
Packing Group	III
WGK Germany	3
RIDADR	UN 1993
Risk Statements	R10
Symbol	GHS02, GHS09
Hazard Declaration	H226; H410
Signal Word	Warning
Caution Statement	P273; P501

Synthesis Route

hexamethyldisiloxane+octamethylcyclotetrasiloxane→Octamethyltrisiloxane+DECAMETHYLTETRASILOXANE
hexamethyldisiloxane+octamethylcyclotetrasiloxane→Octamethyltrisiloxane+DECAMETHYLTETRASILOXANE
ethoxy(trimethyl)silane+Diethoxydimethylsilane→Octamethyltrisiloxane+DECAMETHYLTETRASILOXANE

GC Analysis

Column type	Active phase	Temperature (°C)	Retention Index (I)	Temperature Control Method
Capillary	Ultra-1	-	1031.	custom temperature program
Capillary	Ultra-1	-	1031.	custom temperature program
Capillary	Ultra-1	-	1034.	custom temperature program
Capillary	Ultra-1	-	1034.	custom temperature program
Capillary	Ultra-1	-	1038.	custom temperature program