Registration Dossier

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
30 Mar - 22 Sep 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
GLP guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016
Report Date:
2016

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
EU Method A.4 (Vapour Pressure)
Version / remarks:
adopted in 2008
Deviations:
no
Qualifier:
according to
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Version / remarks:
adopted in 2006
Deviations:
no
Qualifier:
according to
Guideline:
EPA OPPTS 830.7950 (Vapor Pressure)
Version / remarks:
adopted in 1996
Deviations:
no
GLP compliance:
yes (incl. certificate)
Remarks:
Hess. Ministerium für Umwelt, Energie, Landwirtschaft und Verbraucherschutz,Wiesbaden, Germany
Type of method:
effusion method: Knudsen cell

Test material

Reference
Name:
Unnamed
Type:
Constituent
Specific details on test material used for the study:
Storage conditions: ambient temperature (< 40 °C), keep container tightly closed, protected from sunlight

Results and discussion

Vapour pressureopen allclose all
Temp.:
ca. 20 °C
Vapour pressure:
< 0 hPa
Temp.:
ca. 25 °C
Vapour pressure:
< 0 hPa
Temp.:
ca. 50 °C
Vapour pressure:
< 0 hPa
Transition / decomposition
Key result
Transition / decomposition:
yes
Transition temp.:
>= 180 - <= 260 °C

Any other information on results incl. tables

Results
Thermal stability
In the temperature range of 180 – 260 °C an exothermic effect was observed, with decomposition energy equal to -200 J/g. At 300 °C the test was terminated.

Table 1 – DSC measurement results

Sample weight [mg]

Start [°C]

Energy [J/g]

10.12

180 (exothermic)

-200

 

Effusion method – Knudsen Cell
Vapour pressure was measured in the temperature range of 30 to 110 °C. Measurements up to 55 °C are not shown because no evaluable vapour pressure could be detected up to that temperature.

Table 2 – Effusion method data

No.

Temperature [°C]

Vapour pressure [Pa]

1

86

4.65 x10-3

2

91

4.51 x10-3

3

94

7.83 x10-3

4

96

3.85 x10-3

5

99

5.37 x10-3

6

101

5.01 x10-3

 

Vapour pressures for 20, 25 and 50 °C are below the detection limit of < 10-3 Pa. Vapour pressure as a function of the inverse temperature did not show the expected relationship and could not be used to derive values for the vapour pressure at lower temperatures.

Final vapour pressures are shown below, they were determined to be below the detection limits of the apparatus.

Table 3 – Final results

Temperature [°C]

Vapour pressure [Pa]

20

< 10-3

25

< 10-3

50

< 10-3

Applicant's summary and conclusion