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Physical & Chemical properties

Melting point / freezing point

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Endpoint:
melting point/freezing 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
Melting / freezing pt.:
1 495 °C

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

Conclusions:
According to the reference, cobalt has a melting point of 1495 °C.
Endpoint:
melting point/freezing 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
Melting / freezing pt.:
1 493 °C

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

Conclusions:
According to the reference cobalt has a melting point of 1493 °C.

Description of key information

The melting point of cobalt is given as 1493 and 1495 °C. The mean value of 1494 °C will be used for CSA.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
1 494 °C

Additional information

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.