Registration Dossier

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Experimental starting date: 28 April 2016 Experimental completion date: 20 April 2017
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Deviations:
no
GLP compliance:
yes
Type of method:
ring method

Test material

Constituent 1
Chemical structure
Reference substance name:
Amines, C16-18-(even numbered, saturated and unsaturated) alkyl, O,O-di-Bu phosphorothioates
Molecular formula:
Not applicable - UVCB
IUPAC Name:
Amines, C16-18-(even numbered, saturated and unsaturated) alkyl, O,O-di-Bu phosphorothioates
Constituent 2
Chemical structure
Reference substance name:
C16-18-(even numbered, saturated and unsaturated)-alkylamines
EC Number:
627-034-4
Cas Number:
1213789-63-9
Molecular formula:
R-NH2 R = alkyl mainly C16-18-(even numbered, saturated and unsaturated)-alkyl
IUPAC Name:
C16-18-(even numbered, saturated and unsaturated)-alkylamines
Test material form:
liquid
Specific details on test material used for the study:
Information as provided by the Sponsor. The Certificate of Analysis provided by the Sponsor is presented as Annex 1 (Please see Attachment Section of this Summary).

Identification: X-19574
Appearance/Physical state: Amber colored viscous liquid
Batch: X-19574-00-00
Purity: 100% (UVCB)
Expiry date: 01 June 2017
Storage conditions: Room temperature, in the dark

Results and discussion

Surface tension
Key result
Surface tension:
37.9 mN/m
Temp.:
21.5 °C
Conc.:
1.006 g/L

Any other information on results incl. tables

Results

The readings, times and temperatures for the sample solutions are shown in the following tables:

Sample 1

Time (mins)

Reading (mN/m)

Temperature (°C)

75

36.0

21.4

87

36.5

21.4

100

36.0

21.4

115

36.0

21.4

132

36.5

21.6

Sample 2

Time (mins)

Reading (mN/m)

Temperature (°C)

155

39.5

21.6

175

39.5

21.8

185

39.5

21.6

198

40.0

21.6

214

39.5

21.6

Mean Sample 1 result :          36.2 mN/m                 pH of Sample 1 :        5.6

Mean Sample 2 result :          39.6 mN/m                 pH of Sample 2 :        4.8

Mean result                :          37.9 mN/m

Temperature               :          21.5 ± 0.5 ºC

 

Applicant's summary and conclusion

Conclusions:
The mean surface tension of duplicate 90 % saturated solutions of test item in water has been determined to be 37.9 mN/m at 21.5 ± 0.5 °C. The test item was considered to be surface-active.
Executive summary:

The determination was carried out by a ring method, using a procedure designed to be compatible with Method A.5 Surface Tension of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 115 of the OECD Guidelines for the Testing of Chemicals, 27 July 1995.

Conclusion

The mean surface tension of duplicate 90 % saturated solutions of test item in water has been determined to be 37.9 mN/m at 21.5 ± 0.5 °C. The test item was considered to be surface-active.