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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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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Description of key information

The boiling point of Coconut shell charcoal cannot be determined, because the substance is thermally unstable (i.e. starts to decompose) at temperatures below the melting point.
As per REACH Annex 7, paragraph 7.3, the boiling point study does not need to be conducted for substances which decompose before boiling.

Key value for chemical safety assessment

Additional information

When coconut shell charcoal is heated, it starts to decompose without melting or boiling. This is a characteristic of all charring materials.

 

The decomposition is used to characterize coconut shell charcoal in the ‘volatiles’ determination. Typically 10% of weight is lost (not including the weight loss by drying) when the substance is heated to 900°C. After such a test, the material retains it original shape (e.g. chunk or powder) and does therefore not melt or boil during the test.

 

As per REACH Annex 7, paragraph 7.3, the boiling point study does not need to be conducted for substances which decompose before boiling.