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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP study according to EU/OECD guideline.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2012

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
GLP compliance:
yes (incl. QA statement)
Type of method:
dynamic method

Test material

Constituent 1
Chemical structure
Reference substance name:
2,2-difluoroethan-1-amine
EC Number:
671-709-6
Cas Number:
430-67-1
Molecular formula:
C2H5F2N
IUPAC Name:
2,2-difluoroethan-1-amine

Results and discussion

Vapour pressureopen allclose all
Temp.:
20 °C
Vapour pressure:
140 hPa
Remarks on result:
other: extrapolated value
Temp.:
25 °C
Vapour pressure:
180 hPa
Remarks on result:
other: interpolated value
Temp.:
50 °C
Vapour pressure:
560 hPa
Remarks on result:
other: interpolated value

Any other information on results incl. tables

The vapour pressure was measured with the dynamic method in the temperature range of 21 °C to 62 °C.

 

 Temperature / °C  Vapour pressure / hPa
21.1 150.5
26.8

200.6 

35.3 300.4 
47.1 501.0
55.4 700.3
62.2 898.4 
42.0 399.6
31.3 249.4
24.0 174.6

The following vapour pressure values for the test item were extrapolated (value at 20°C) and interpolated (values at 25 °C and 50 °C) from the experimental data of the test item (dynamic method):

 T / °C  p / hPa  p / Pa
 20 1.4 x 102   1.4 x 104
 25  1.8 x 102  1.8 x  104
50   5.6 x 102  5.6 x  104

Applicant's summary and conclusion

Conclusions:
The following vapour pressure values for the test item were extrapolated (value at 20°C) and interpolated (values at 25 °C and 50 °C) from the experimental data of the test item (dynamic method):
 T / °C  p / hPa  p / Pa
 20 1.4 x 10E2 1.4 x 10E4
 25  1.8 x 10E2 1.8 x 10E4
50  5.6 x 10E2  5.6 x 10E4