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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Vapour pressure

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Description of key information

The vapour pressure of a sample of 4-Oxo-Tempo (purity 93.79% w/w) was determined in a study performed in accordance with OECD 104 and EU Method A4 and to GLP.
The vapour pressures at 20°C and 25°C were reported as 1.316 Pa and 2.254 respectively.

Key value for chemical safety assessment

Vapour pressure:
2.254 Pa
at the temperature of:
25 °C

Additional information

The key study was determined in accordance with GLP and to a current OECD guideline. A reliability score of 1 according to the criteria of Klimisch, 1997 was assigned to the study.