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Physical & Chemical properties

Boiling point

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Reference
Endpoint:
boiling point
Type of information:
not specified
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Remarks:
The use of secondary sources of data is acceptable when they are based on a critical evaluation of peer-reviewed data and a consequent selection of a reliable and representative value for the property under investigation. The introduction to the CRC Handbook of Chemistry and Physics states that data for physical constants have been taken from many sources, including both compilations and the primary literature. Where conflicts were found, the value deemed most reliable was chosen. Therefore, although the method used is not known, the values presented here are acceptable as they are from a reliable secondary source of phys chem. data.
Principles of method if other than guideline:
No method specified as data was obtained from handbook.
Type of method:
other: No specified
Key result
Boiling pt.:
49.7 °C
Atm. press.:
760 mm Hg
Decomposition:
no
Remarks on result:
other: Standard atmospheric pressure assumed
Conclusions:
The boiling point of 2,2-dimethylbutane is reported to be 49.7 °C.
Executive summary:

The boiling point of 2,2-dimethylbutane (49.7 °C) has been taken from the CRC Handbook. No information on the primary source of this data or the methods used is available. However, this information is taken from a reliable peer reviewed handbook and so can be considered reliable and suitable for use as the key study for this endpoint.

Description of key information

The boiling point of 2,2 -dimethylbutane is 49.7°C.

Supporting read across data is available for Hydrocarbons, C6, isoalkanes, <5% n-hexane and Isohexane and this data is used for read across to 2,2 -dimethylbutane.

The boiling point range for Hydrocarbons, C6, isoalkanes, <5% n-hexane is 48°C to 70°C.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
49.7 °C

Additional information

The boiling point of 2,2 -dimethylbutane is 49.7°C.

Supporting read across data is available for Hydrocarbons, C6, isoalkanes, <5% n-hexane and Isohexane and this data is used for read across to 2,2 -dimethylbutane.

The boiling point range for Hydrocarbons, C6, isoalkanes,  <5% n-hexane is 48 to 70°C according to testing methodology ASTM D 1078. This range has been agreed by the consortium to represent the substance.