Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
05.October 2017 - 06.October 2017
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study

Data source

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

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
GLP compliance:
no
Type of method:
ring method

Test material

Constituent 1
Chemical structure
Reference substance name:
Fatty acids, C18 unsatd., reaction products with triethanolamine
EC Number:
938-513-5
Cas Number:
1187872-27-0
IUPAC Name:
Fatty acids, C18 unsatd., reaction products with triethanolamine
Test material form:
liquid: viscous
Specific details on test material used for the study:
batch DEB2 207167
clear brown liquid

Results and discussion

Surface tension
Surface tension:
71.59 mN/m
Temp.:
20.1 °C
Conc.:
0.05 mg/L

Any other information on results incl. tables

Table 1: Surface tension

  Mean value : delta=71.59 mN/m (corrected according to Zuidema and Waters)
 Measurment  1  2  3  4  5  6
 Time (s)  149  271  393  513  634  756
 delta (mN/m) uncorrected  77.23  77.17  77.13  77.01  77.00  77.03
 delta (mN/m) corrected according to Zuidema and Waters  71.72  71.66  71.62  71.50  71.49  71.52
             

Applicant's summary and conclusion

Conclusions:
The aqueous solution of the test item had a mean surface tension of 71.59 mN/m. As the surface tension was higher than 60 mN/m, the test item had no surface-active properties.
Executive summary:

The surface tension of the aqueous solution at 20 °C had a mean value of 71.59 mN/m. The test item had no surface-active properties.

Categories Display