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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Enzymes - Vapor Pressure

Justifications and discussions

Category rationale:
The vapor pressure of four different enzymes (freeze-dried) was measured using the vapor pressure balance method at temperatures 40-50 °C and 60-70 °C (below denaturing temperature). Several runs were conducted for each enzyme and a mean value was calculated for each enzyme. All four enzymes had vapor pressure in the order of 10^-3 Pa.

This shows that the vapor pressure of enzymes is very similar and can be used as read-across to all other enzymes.