Registration Dossier

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Follows a recognised guideline and performed to GLP standards.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2008
Report Date:
2008

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
EU Method A.5 (Surface Tension)
Deviations:
yes
Principles of method if other than guideline:
Deviation: The surface tension result was not corrected using the Harkins-Jordan correction table as the correction is not applicable to the apparatus used. Once calibrated, the balance and ring assembly used in this test give a direct reading for the surface tension that is within the required accuracy (+/- 0.5 mN/m); this is as a result of the reduced ring dimensions.
GLP compliance:
yes (incl. certificate)
Type of method:
ring method

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Surface tension
Surface tension:
72.3 mN/m
Temp.:
22.4 °C
Conc.:
1.01 g/L

Any other information on results incl. tables

The readings, times and temperatures for the sample solution are shown in the following table:

 Time (mins) Reading (mN/m)  Temperature (C) 
77  72.5  22.4 
86  72.0  22.6 
96  72.5  22.4 
106  72.5  22.4 
116  72.5  22.4 
126  72.5  22.4 

Applicant's summary and conclusion

Conclusions:
The surface tension of a 1.01 g/l solution of trisodium 6,6',6"-(1,3,5-triazine-2,4,6-triyltriimino)trihexanoate has been determined to be 72.3 mN/m at 22.4 +/- 0.5 C. Trisodium 6,6',6"-(1,3,5-triazine-2,4,6-triyltriimino)trihexanoate is considered not to be a surface-active material.