Octamethyltrisiloxane

Names

[ CAS No. ]:
107-51-7

[ Name ]:
Octamethyltrisiloxane

[Synonym ]:
Trisiloxane, 1,1,1,3,3,5,5,5-octamethyl-
Poly(Dimethylsiloxane)
Octamethyltrisiloxane
EINECS 203-497-4
Dimethylbis(trimethylsilyloxy)silane
POLY(DIMETHYLSILOXANE),HYDROXY TERMINATED
POLY(DIMETHYLSILOXANE), HYDROXY TERMINATED
MFCD01325012

Chemical & Physical Properties

[ Density]:
0.8±0.1 g/cm3

[ Boiling Point ]:
153.0±0.0 °C at 760 mmHg

[ Melting Point ]:
-82 °C

[ Molecular Formula ]:
C₈H₂₄O₂Si₃

[ Molecular Weight ]:
236.531

[ Flash Point ]:
55.0±23.0 °C

[ Exact Mass ]:
236.108414

[ PSA ]:
18.46000

[ LogP ]:
4.74

[ Vapour density ]:
>1 (vs air)

[ Vapour Pressure ]:
4.4±0.2 mmHg at 25°C

[ Index of Refraction ]:
1.405

[ Storage condition ]:
Flammables area

MSDS

Click to get detail MSDS

Safety Information

[ Symbol ]:

GHS02, GHS09

[ Signal Word ]:
Warning

[ Hazard Statements ]:
H226-H410

[ Precautionary Statements ]:
P273-P501

[ Personal Protective Equipment ]:
Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter

[ Hazard Codes ]:
F+

[ Risk Phrases ]:
R10

[ Safety Phrases ]:
S23-S24/25

[ RIDADR ]:
UN 1993 3/PG 3

[ WGK Germany ]:
3

[ Packaging Group ]:
III

[ Hazard Class ]:
3.2

[ HS Code ]:
2934999090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

DownStream

Customs

[ HS Code ]: 2934999090

[ Summary ]:
2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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