Registration Dossier

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
27 January 2015 - 23 April 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP-compliant study in accordance with EC A.4.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2015
Report date:
2015

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Version / remarks:
(2009)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Version / remarks:
(2006)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7950 (Vapor Pressure)
Version / remarks:
(1996)
Deviations:
no
GLP compliance:
yes
Type of method:
other: Effusion method: isothermal thermogravimetry

Test material

Constituent 1
Chemical structure
Reference substance name:
3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctane-1-thiol
EC Number:
628-448-8
Cas Number:
34451-26-8
Molecular formula:
C8H5F13S
IUPAC Name:
3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctane-1-thiol
Details on test material:
- Name (as cited in study report): NS-1000
- Appearance: Clear colourless liquid

Results and discussion

Vapour pressureopen allclose all
Temp.:
25 °C
Vapour pressure:
1.3 other: E03 Pa
Remarks on result:
other: (9.8 mm Hg)
Temp.:
20 °C
Vapour pressure:
7.4 other: E02 Pa
Remarks on result:
other: (5.5 mm Hg)

Any other information on results incl. tables

Table: Results of the isothermal TGA analysis:

Temperature

[°C]

Weight loss

[μg/min]

vT

[g/cm2/h]

Log vT

Log PT

PT

[Pa]

10

90.99

1.09 x 10-2

-1.96

2.35

2.3 x 102

86.51

1.03 x 10-2

-1.99

2.33

2.1 x 102

15

155.8

1.86 x 10-2

-1.73

2.63

4.2 x 102

152.6

1.82 x 10-2

-1.74

2.62

4.1 x 102

20

250.4

2.99 x 10-2

-1.52

2.87

7.4 x 102

244.7

2.92 x 10-2

-1.53

2.86

7.2 x 102

Applicant's summary and conclusion

Conclusions:
Using the isothermal thermogravimetric effusion method, the vapour pressure of the substance at 25°C has been determined as 1.3E03 Pa. The vapour pressure of the substance at 20°C has been determined as 7.4E02 Pa. The study was in accordance with EC A.4, OECD 104 and EPA OPPTS 830.7950 guidelines and in compliance with GLP.