Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

vapour pressure
Type of information:
calculation (if not (Q)SAR)
Migrated phrase: estimated by calculation
Adequacy of study:
key study
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: study conform with Directive EEC 92/69, A.4, OECD Guideline No. 104

Data source

Reference Type:
study report
Report date:

Materials and methods

Test guideline
according to guideline
OECD Guideline 104 (Vapour Pressure Curve)
GLP compliance:
yes (incl. QA statement)
Type of method:
other: Modified Watson Correlation

Test material

Constituent 1
Details on test material:
Identification: AES
Molecular weight: 693
Appearance: Solid

Results and discussion

Vapour pressure
25 °C
Vapour pressure:
0 Pa
Remarks on result:
other: 1.21 x E-12 Pa at 25°C

Applicant's summary and conclusion

The vapor pressure of AES was estimated to be 1.21 x E-12 Pa at 25 °C.
Executive summary:

The boiling point of AES was calculated to be approximately 515.16 °C using Meissner’s method.

The vapor pressure of AES was estimated to be 1.21 x E-12 Pa at 25 °C based on the boiling point calculated and using the Modified Watson Correlation. The vapor pressure was calculated for a molecule with covalent bands. Using the Meissner’s method for the calculation of the boiling point, it is not possible to take the ionic character into account. The calculation must be regarded as an estimation. The real vapor pressure of the AES is below 1.21 x E-12 Pa at 25 °C.