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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: Handbook data
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Qualifier:
no guideline followed
Principles of method if other than guideline:
Not applicable: Handbook data
GLP compliance:
no
Type of method:
other: no data
Boiling pt.:
2 927 °C
Atm. press.:
101.325 kPa
Conclusions:
According to the reference, cobalt has a boiling point of 2927 °C at 101.325 kPa.
Endpoint:
boiling point
Type of information:
other: handbook data
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Qualifier:
no guideline followed
Principles of method if other than guideline:
Not applicable: handbook data
GLP compliance:
no
Type of method:
other: no data
Boiling pt.:
ca. 3 100 °C

The atmospheric pressure during measurement is not reported. It is assumed that the boiling point was determined at an atmospheric pressure of 101.325 kPa.

Conclusions:
According to the reference, cobalt has a boiling point of about 3100 °C.

Description of key information

Cobalt has a boiling point of 2927 °C at 101.325 kPa.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
2 927 °C

Additional information

The reference Merck (2006) was not used for CSA, since it only states a circa value of 3100°C.

For the evaluation of this endpoint data from two handbooks were used. According to the REACH regulation (“ECHA, guidance on information requirements and chemical safety assessment – chapter R.7a”), it is allowed to use specific handbook data as a reliable data source. Useful reference books and data compilations containing peer reviewed physico-chemical data include the Merck Index and the CRC Handbook of Chemistry and Physics.