Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2021
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2021

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
GLP compliance:
yes (incl. QA statement)
Type of method:
plate method

Test material

Constituent 1
Reference substance name:
Docosan-1-ol, icosan-1-ol, octadecan-1-ol and their reaction products with betaine and ethanesulphonic acid
IUPAC Name:
Docosan-1-ol, icosan-1-ol, octadecan-1-ol and their reaction products with betaine and ethanesulphonic acid
Test material form:
solid: bulk

Results and discussion

Surface tension
Surface tension:
> 60 mN/m
Temp.:
20 °C
Conc.:
38.03 mg/L

Applicant's summary and conclusion

Conclusions:
The test item is considered as not surface active in a concentration of 38.03mg/L
Executive summary:

At the plateau (second measurement series), the values of the single determinations show no significant difference (less than 5 %, 1.15%) between mean values of the two-measurement series, second and third measurement series).


All measured values are higher than 60 mN/m, the measured values at the plateau lay above the threshold for surface tension which is stated in the guidelines.


The surface tension of the negative control was determined with a difference of 0.44 % from the stated literature value.


 


Therefore, the result of the test is considered valid and the test item Commercial name: CosmeGreen ES1822+Substance name: Reaction mass between glycine betaine,


ethanesulphonic acid, octadecan-1-ol, docosan-1-ol and eicosan-1-ol is classified as


 


“not surface active” in a concentration of 38.03 mg/L


 


(in a solution of 90% saturated solution obtained from an aqueous solution prepared by shaking 1.00g/L of test item for 24 hours and 5 minutes).