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Physical & Chemical properties

Boiling point

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Endpoint:
boiling point
Type of information:
other: Secondary literature
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Secondary literature, handbook with reliable values.
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: Secondary literature
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Secondary literature, handbook with reliable values
Qualifier:
no guideline followed
Principles of method if other than guideline:
950
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.