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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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.

Diss Factsheets

Physical & Chemical properties

Boiling point

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Administrative data

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Endpoint:
boiling point
Type of information:
other: Data obtained from a handbook
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Principles of method if other than guideline:
The result was obtained from a handbook or collection of reliable data.
GLP compliance:
not specified
Type of method:
other: Not stated
Key result
Boiling pt.:
-111.9 °C
Atm. press.:
1 013 hPa
Conclusions:
A boiling point value of -111.9°C at 1013 hPa was reported for the substance in a collection of reliable data which has been subject to peer-review and in which the original data sources are traceable.
Endpoint:
boiling point
Type of information:
other: Data obtained from a handbook
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Principles of method if other than guideline:
The result was obtained from a handbook or collection of reliable data.
GLP compliance:
not specified
Type of method:
other: Not stated
Key result
Boiling pt.:
-112 °C
Atm. press.:
1 013 hPa
Decomposition:
yes
Decomp. temp.:
ca. 400 °C
Remarks on result:
other: At approximately 400°C; the substance decomposes to form silicon and hydrogen
Conclusions:
A boiling point value of -112°C at 1013 hPa was reported for the substance in a collection of reliable data which has been subject to peer-review and in which the original data sources are traceable. At approximately 400°C, the substance decomposes to form silicon and hydrogen. The result is considered to be reliable.

Description of key information

Boiling point: -112°C at 1013 hPa

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
-112 °C

Additional information

Boiling point values of -112°C and -111.9°C at 1013 hPa were reported for the substance in handbooks or collections of reliable data which have been subject to peer-review and in which the original data sources are traceable. At approximately 400°C; the substance was reported to decompose to form silicon and hydrogen. The results are considered to be reliable and are used as weight of evidence.

In a secondary source to which reliability could not be assigned, boiling point value of -112.3°C at 1013 hPa was reported for the substance.