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Physical & Chemical properties

Vapour pressure

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Link to relevant study record(s)

Reference
Endpoint:
vapour pressure
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the melting point is above 300°C

Description of key information

The melting point of zinc cyanide is 800°C, which is a substance that melts at over 300°C. According to the column 2 of the annex VII section 7.5 of Regulation (EC) No 1907/2006 concerning the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH), the study does not need to be conducted if the melting point is above 300°C.

Key value for chemical safety assessment

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

Additional information

To be able to run the CSA, a value for VP is needed. As the key value for CSA purposes, the minimal value accepted by CHESAR is set, i.e. 1E-06 Pa.

Indeed, QSAR models (EPISuite v4.1) predict VP values < 1E-06 Pa.