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octamethylcyclotetrasiloxane

CAS No.: 556-67-2
Synonyms:
Formula: C8H24O4Si4
Exact Mass: 296.07500
Molecular Weight: 296.61600
PSA: 36.92000
LogP: 2.87360
Reference Price: $150/kg Post Buying Request
Description Feedback
Octamethylcyclotetrasiloxane, also called D4, is an organosilicon compound with the formula [(CH3)2SiO]4. lt is a colorless viscous liquid. It is a common cyclomethicone. Like other cyclomethicones, it is slightly volatile. It has attracted scrutiny because it is pervasive in the environment.

Properties Feedback
Appearance & Physical State:Colorless clear liquid
Density:0.956
Melting Point:17-18ºC
Boiling Point:175-176ºC
Flash Point:56ºC
Refractive Index:1.395-1.397
Water Solubility:INSOLUBLE
Storage Condition:2-8ºC
Vapor Density:1 (vs air)

Safety Info Feedback
Hazard Codes:Xn
Risk Statements:R53; R62
Safety Statements:S36/37-S46-S51-S61
RIDADR:UN 1993
WGK Germany:3
RTECS:GZ4397000
Packing Group:III
Hazard Class:3

GC Analytical Method Total: 10 GC Analytical Method
Van Den Dool and Kratz RI, non-polar column, temperature ramp [Detail]
Column type Active phase Temperature (C) Retention Index (I) Reference
Capillary Ultra-1 1004. Richmond and Pombo-Villar, 1998
Normal alkane RI, non-polar column, temperature ramp [Detail]
Column type Active phase Temperature (C) Retention Index (I) Reference
Capillary HP-5 994. Jung, Wichmann, et al., 1999
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MSDS


Synthesis Route Total: 75 Synthesis Route
 
15576-81-5
~58%
556-67-2
541-02-6
View Detail
 
541-05-9
88703-87-1
~47%
556-67-2
82094-48-2
View Detail

Precursor and Product