Registration Dossier

Physical & Chemical properties

Vapour pressure

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Description of key information

2.88 x 10^-6 Pa

Key value for chemical safety assessment

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

Additional information

For this endpoint, the read across between PWH/ammonium and PWH/sodium salt is valid.

The read across justification is attached on section 13 of the dossier.

Based on Reach Regulation ANNEX VII column 2 "If the melting point is between 200°C and 300°C, a limit value based on measurement or a recognised calculation method is sufficient." For this substance a melting point has not been determined since a decomposition phase is measured above 130°C. An estimated value has been reported.