Registration Dossier
Registration Dossier
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EC number: 201-029-3 | CAS number: 77-47-4
Boiling point
Administrative data
Link to relevant study record(s)
- 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
Referenceopen allclose all
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)
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