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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint:
vapour pressure
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Study period:
2014
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Modelling was conducted assuming a covalent structure for the ion pair.

Data source

Reference
Reference Type:
other: estimation
Title:
No information
Year:
2014
Bibliographic source:
MPBPWIN v1.43 (U.S. Environmental Protection Agency, September 2010)

Materials and methods

Principles of method if other than guideline:
MPBPWIN v1.43 (Modified Grain Method)
GLP compliance:
no
Type of method:
other: estimation

Test material

Constituent 1
Reference substance name:
Quaternary Phosphonium salt/BAF 1/1
IUPAC Name:
Quaternary Phosphonium salt/BAF 1/1
Constituent 2
Reference substance name:
Phosphorus (1+), (N-ethylethanaminato)diphenyl(phenylmethyl)-, (T-4)-, salt with 4,4’-[2,2,2-trifluoro-1-(trifluoromethyl) ethylidene]bis[phenol] (1:1)
IUPAC Name:
Phosphorus (1+), (N-ethylethanaminato)diphenyl(phenylmethyl)-, (T-4)-, salt with 4,4’-[2,2,2-trifluoro-1-(trifluoromethyl) ethylidene]bis[phenol] (1:1)
Constituent 3
Chemical structure
Reference substance name:
-
EC Number:
479-100-5
EC Name:
-
Cas Number:
577705-90-9
Molecular formula:
C38H36F6O2NP
IUPAC Name:
benzyl(diethylamino)diphenylphosphanium 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxyphenyl)propan-2-yl]benzen-1-olate

Results and discussion

Vapour pressure
Temp.:
25 °C
Vapour pressure:
0 mm Hg
Remarks on result:
other: Estimated vapour pressure of the substance assuming a covalent structure

Applicant's summary and conclusion

Conclusions:
The estimated vapour pressure of the substance, assuming a covalent structure, is 3.27 x 10^-14 mm Hg at 25° C. The very low modelled vapour pressure value is consistent with the fact that this is a large and complex molecule.
Executive summary:

Vapour pressure was estimated by MPBPWIN model; modelling was conducted assuming a covalent structure for the ion pair.

The estimated vapour pressure of the substance is 3.27 x 10^-14 mm Hg at 25° C.