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8.14051 Sigma-Aldrich

Hexamethyldisiloxane

Hexamethyldisiloxane for synthesis. CAS 107-46-0, EC Number 203-492-7, chemical formula ((CH₃)₃Si)₂O.

Synonym: 2,2,4,4-Tetramethyl-3-oxa-2,4-disilapentane, HMDSO, 2,2,4,4-Tetramethyl-3-oxa-2,4-disilapentane, HMDSO

  • CAS Number 107-46-0

  • Linear Formula ((CH3)3Si)2O

  • Molecular Weight 162.38

  •  EC Index Number 203-492-7

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Properties

packaging   100 ml in Glass bottle (8.14051.0100)
  20 kg in Barrel PE/met (8140519020)
  500 ml in Glass bottle (8140510500)
expl. lim.   0.5-21.8 % (v/v)
potency   >12160 mg/kg LD50, oral (Rat)
  >2000 mg/kg LD50, skin (Rat)
storage conditions   Store below +30°C.
transition temp   flash point 4 °C
bp   100 °C/1013 hPa
vapor pressure   20 hPa ( 20 °C)
solubility   insoluble 0.00037 g/L
density   0.76 g/cm3 at 25 °C
autoignition temp.   340 °C
mp   -68 °C

Description

Analysis Note

Assay (GC, area%): ≥ 98.5 % (a/a)
Density (d 20 °C/ 4 °C): 0.762 - 0.764
Identity (IR): passes test

Safety & Documentation

Safety Information

Symbol 
GHS02  GHS02
Signal word 
Danger
Hazard statements 
Supplemental Hazard Statements 
highly flammable, dangerous for the environment
WGK Germany 
2
RTECS 
JM9237000

Documents

Certificate of Analysis (COA)

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Protocols & Articles
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