Registration Dossier

Administrative data

Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
07 April 2015 - 29 May 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP-compliant study in accordance with EC A.6.

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.6 (Water Solubility)
Version / remarks:
(2008)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 105 (Water Solubility)
Version / remarks:
(1995)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7840 (Water Solubility)
Version / remarks:
(1998)
Deviations:
no
GLP compliance:
yes
Type of method:
flask method

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

Water solubility
Water solubility:
46.8 µg/L
Temp.:
20 °C
pH:
7 - 7.4
Details on results:
The concentration analysed after 24, 48 and 72 hours of stirring was 0.0609 mg/L, 0.0324 mg/L and 0.0472 mg/L, resp. The maximum difference (MD) was >15% (61%). As the water solubility is extremely low (<0.1 mg/L), it was considered acceptable to provide the water solubility as the mean of these 3 concentrations. There was no need for further investigations.

A negligible response was detected in the pretreated sample from the blank water mixture.

Any other information on results incl. tables

 

Stirring time

[hours]

Analysed concentration

[µg/L]

Conclusion

MD

[%]

pH

24

60.9

 

< 0.1 mg/L

 

61

7.0

48

32.4

7.4

72

47.2

7.1

 

Applicant's summary and conclusion

Conclusions:
Interpretation of results (migrated information): insoluble (< 0.1 mg/L)
In a GLP-compliant study in accordance with EC A.6, OECD 105 and OPPTS 830.7840 using the (slow-stirring) flask method, the water solubility of the substance at 20°C has been determined as < 0.1 mg/L.