Registration Dossier
Registration Dossier
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EC number: 238-101-9 | CAS number: 14233-37-5
Surface tension
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:
- 2 018
- Report date:
- 2018
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 (incl. QA statement)
Test material
- Reference substance name:
- 1,4-bis(isopropylamino)anthraquinone
- EC Number:
- 238-101-9
- EC Name:
- 1,4-bis(isopropylamino)anthraquinone
- Cas Number:
- 14233-37-5
- Molecular formula:
- C20H22N2O2
- IUPAC Name:
- 1,4-bis[(propan-2-yl)amino]-9,10-dihydroanthracene-9,10-dione
- Test material form:
- solid: particulate/powder
Constituent 1
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.).
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