Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Link to relevant study record(s)

boiling point
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the substance is a solid which decomposes before boiling

Description of key information

In accordance with column 2 of REACH Annex VII, the test on the boiling point (required in section 7.3) was waived, as no boiling of Urea 4 during the determination of the melting point / melting range of Urea 4 (see section 4.2) was observed. The results obtained indicate without doubt that Urea 4 starts to decompose or react at temperatures > 280 °C. In conclusion, no boiling point of Urea 4 was observed up to a degradation or reaction temperature of about 280 °C. Therefore, no separate experimental determination of the boiling point/boiling range had to be performed according to the guidelines in force.

Key value for chemical safety assessment

Additional information