Registration Dossier

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 8 NOVEMBER2018 to 4 DECEMBER 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report Date:
2018

Materials and methods

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

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder

Results and discussion

Surface tension
Key result
Temp.:
20.1 °C
Conc.:
90 other: % of saturation
Remarks on result:
not determinable
Remarks:
The values of the single determinations show no significant difference (0.50% between mean values of the two measurement series). All measured values lay clearly 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 0.05 % from the stated literature value. Therefore, the result of the test is considered valid and the test item 1,4- bis(isopropylamino)anthraquinone is classified as “not surface active” (in a solution at 90% saturation obtained from an aqueous solution prepared with 1.00 g/L in water HPLC grade shaking for 24 hours at 19.1 – 21.1 °C in a closed flask at 150 rpm.).

Applicant's summary and conclusion

Conclusions:
The values of the single determinations show no significant difference (0.50% between
mean values of the two measurement series). All measured values lay clearly 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 0.05 %
from the stated literature value.
Therefore, the result of the test is considered valid and the test item 1,4-
bis(isopropylamino)anthraquinone is classified as “not surface active” (in a solution at
90% saturation obtained from an aqueous solution prepared with 1.00 g/L in water HPLC
grade shaking for 24 hours at 19.1 – 21.1 °C in a closed flask at 150 rpm.).