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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Link to relevant study record(s)

Description of key information

The vapour pressure of streams in this category is in the range 2.5 hPa to 585 hPa at 20°C.

Key value for chemical safety assessment

Additional information

Proprietary studies were available from GKA Competence Centre Analytics (2008a) for the stream 68477-39-4 (vapour pressure 9.04 hPa at 20ºC, 11.58 hPa at 25ºC, and 35.94 hPa at 50ºC), from Huntington Life Science Limited (2004d) for the stream 68471-55 -1 (vapour pressure 584.4 hPa at 25ºC) and from Chilworth Technology Limited (2009) for the stream 64741-98-6 (vapour pressure 22.72 hPa at 20ºC). These studies were in accordance with a standard guideline and are considered reliable for assessment. The data from these studies will be read across to other members of the category.

RÜTGERS Germany GmbH, Analytisches Zentrallabor (AZL) (2010) provided data for the stream 64742-94-5 (vapour pressure 2.5 hPa at 20ºC to 25ºC) via a signed Certificate of Analysis. This data provided details on the method used and was considered adequate for assessment.