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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Vapour pressure

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Description of key information

Values for the vapor pressure of butyric anhydride were taken from two published sources: Hawley's Condensed Chemical Dictionary, and Yaw's Chemical Properties Handbook.

Key value for chemical safety assessment

Additional information

The value for the vapor pressure of butyric anhydride, taken from Hawley's Chemical Dictionary, was 40 Pascals at 20C. The vapor pressure taken from Yaw's Chemical Properties Handbook was 25 Pascals at 20 C. This provides for a range of 25 - 40 Pascals at 20 C.