Registration Dossier
Registration Dossier
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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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EC number: 201-861-7 | CAS number: 88-85-7
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
The key value for this endpoint was taken from a QSAR result which is fully validated for the type of substance (organics), is relevant for this regulatory purpose and has been recommended by the regulatory authority (ECHA, R.7a).
The key value was derived using the EPIWIN model MPBPWIN, which was given a reliability score of 2 based upon the criteria of Klimisch et al, 1997, and the guidelines set out by the ECHA in guidance document R.7a and R.8.
Key value for chemical safety assessment
- Vapour pressure:
- 0.01 Pa
- at the temperature of:
- 25 °C
Additional information
The key study (QSAR model with reliability score of 2) produced a result of 0.0000744 mm Hg (0.00993 Pa) at 25ºC. This key value is supported by a literature source (rated a reliability of 2) which provides a result of 0.00005 mm Hg (4.62 pKa) at around 25ºC.
Supporting information is also available from the SCS/ARS/CSE Pesticide Properties Database for Environmental Decision-Making II.
Result: The substance is reported to have a vapour pressure of 5x10-5mm Hg (4.62 pKa) at around 25ºC.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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