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Hexamethyldisiloxane

Catalog No. A11848 Name Alfa Aesar
CAS Number 107-46-0 Website
M. F. C6H18OSi2 Telephone
M. W. 162.37752 Fax
Purity 98+% Email
Storage Chembase ID: 103302

SYNONYMS

Title
六甲基二硅氧烷
IUPAC name
trimethyl[(trimethylsilyl)oxy]silane
IUPAC Traditional name
hexamethyldisiloxane
Synonyms
HMDSO

DATABASE IDS

MDL Number MFCD00008265
EC Number 203-492-7
CAS Number 107-46-0
Beilstein Number 1736258

PROPERTIES

Purity 98+%
Boiling Point 100-101°C
Density 0.764
Flash Point -2°C(28°F)
Melting Point -67°C
Refractive Index 1.3770
GHS Pictograms GHS02
GHS Pictograms GHS09
GHS Hazard statements H225-H400-H410
European Hazard Symbols Flammable Flammable (F)
European Hazard Symbols Nature polluting Nature polluting (N)
GHS Precautionary statements P210-P273-P403
Risk Statements 11-50/53
RTECS JM9237000
Safety Statements 9-16-60-61
TSCA Listed
Hazard Class 3
UN Number UN1993
Packing Group II

DETAILS

REFERENCES

  • Silylates primary and sec-alcohols and phenols, in the presence of p-TsOH as catalyst. If the substrate contains acid-sensitive groups, PPTS can be used: Tetrahedron Lett., 4261 (1978). See Appendix 4.
  • Reacts with P2O5 to give trimethylsilyl polyphosphate ('PPSE'), a milder and more convenient dehydrating agent then polyphosphoric acid. For examples, and related reagents, see Phosphorus(V) oxide, A13348.
  • In the presence of FeCl3, reacts with benzotrichlorides to give substituted benzoyl chlorides in good yields: J. Chem. Soc., Chem. Commun., 808 (1977).