1-Octanethiol, 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluoro-

Water solubility

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 guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

EU Method A.6 (Water Solubility)

Version / remarks:

(2008)

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

OECD Guideline 105 (Water Solubility)

Version / remarks:

(1995)

Deviations:

no

Test guideline 3

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

Test material information

Constituent 1

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.