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Physical & Chemical properties

Boiling point

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Endpoint:
boiling point
Type of information:
not specified
Adequacy of study:
weight of evidence
Study period:
1977
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
documentation insufficient for assessment
Qualifier:
no guideline required
Principles of method if other than guideline:
Data collected from literature search to use in weight of evidence approach.
Boiling pt.:
239 °C
Atm. press.:
101 325 Pa
Remarks on result:
other: Atm. press. assumed
Endpoint:
boiling point
Type of information:
not specified
Adequacy of study:
weight of evidence
Study period:
2017
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
documentation insufficient for assessment
Qualifier:
no guideline required
Principles of method if other than guideline:
Data collected from literature search to use in weight of evidence approach.
Boiling pt.:
239 °C
Atm. press.:
101 325 Pa
Remarks on result:
other: Atm. press. assumed
Endpoint:
boiling point
Type of information:
not specified
Adequacy of study:
weight of evidence
Study period:
1979
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
documentation insufficient for assessment
Qualifier:
no guideline required
Principles of method if other than guideline:
Data collected from literature search to use in weight of evidence approach.
Boiling pt.:
239 °C
Atm. press.:
753 mm Hg
Endpoint:
boiling point
Type of information:
not specified
Adequacy of study:
weight of evidence
Study period:
1978
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
documentation insufficient for assessment
Qualifier:
no guideline required
Principles of method if other than guideline:
Data collected from literature search to use in weight of evidence approach.
Boiling pt.:
239 °C
Atm. press.:
760 mm Hg
Boiling pt.:
108 °C
Atm. press.:
10 mm Hg

Description of key information

Mean boiling point: 239 °C (s.d. = 0 °C)

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
239 °C

Additional information

A literature search of available information for the boiling point of Hexachlorocyclopentadiene identified a number of experimental values. None of the data available gives any experimental information or comes from secondary literature. Therefore a Weight of Evidence approach will be taken to estimate the boiling point. In accordance with the recommended approach given by ECHA (2016) and NIST (2015) the value will be calculated as follows:

1.      Estimates of the mean and standard deviation are computed.

2.      Values greater than three times the standard deviations of the mean are excluded.

3.      If values have been excluded, the process is repeated with estimates based on the remaining values.

Mean boiling point: 239°C (s.d. = 0°C)