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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
experimental study
Adequacy of study:
key study
Study period:
2004-06-14 - 2004-06-22
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2005
Report date:
2005

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Version / remarks:
27 July 1995.
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
effusion method: vapour pressure balance

Test material

Constituent 1
Chemical structure
Reference substance name:
Flucytosine
EC Number:
217-968-7
EC Name:
Flucytosine
Cas Number:
2022-85-7
Molecular formula:
C4H4FN3O
IUPAC Name:
flucytosine
Test material form:
solid: particulate/powder
Specific details on test material used for the study:
please refer to Test material information

Results and discussion

Vapour pressureopen allclose all
Key result
Temp.:
25 °C
Vapour pressure:
0 Pa
Remarks on result:
other: mean of measurement runs: -8.824 Log10 Pa
Key result
Test no.:
#1
Temp.:
25 °C
Vapour pressure:
-8.742 other: Log10 [Pa]
Key result
Test no.:
#2
Temp.:
25 °C
Vapour pressure:
-9.067 other: Log10 [Pa]
Key result
Test no.:
#3
Temp.:
25 °C
Vapour pressure:
-8.953 other: Log10 [Pa]
Key result
Test no.:
#4
Temp.:
25 °C
Vapour pressure:
-8.895 other: Log10 [Pa]
Key result
Test no.:
#5
Temp.:
25 °C
Vapour pressure:
-8.461 other: Log10 [Pa]

Applicant's summary and conclusion

Conclusions:
The vapour pressure of the test material has been determined to be 1.5E-9 Pa at 25 °C