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The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

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Physical & Chemical properties

Boiling point

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Administrative data

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Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
20-Oct to 15-Nov-2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling Point)
GLP compliance:
yes (incl. QA statement)
Remarks:
Medicines & Healthcare products Regulatory Agency
Type of method:
method according to Siwoloboff
Boiling pt.:
203 °C
Atm. press.:
1 013 hPa

Results

The results of duplicate definitive determinations on Hexyltrimethoxysilane were as follows:

Barometric pressure: 999 mbar.

 

 

Boiling point (°C)

 

 

Observed

Pressure corrected*

Run 1

202.7

203.3

Run 2

202.5

203.1

 

* Pressure correction

 

Cb = Tb + 0.00009 (1013-Pb) (273 + Tb)

 

Cb      is the corrected boiling point (ºC)

Pb       is the ambient barometric pressure (mbar)

Tb       is the observed boiling point (°C)

 

Conclusion

The boiling temperature of Hexyltrimethoxysilane was determined to be 203°C at 1013 mbar (1 atm).

Conclusions:
A boiling point value of 203 °C at approx. 1013 hPa was determined in a reliable study conducted according to an appropriate test protocol.

Description of key information

Hexyl(trimethoxy)silane: 203 °C at approx. 1013 hPa (Siwoloboff method, EU method A.2)

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
203 °C

Additional information