Registration Dossier

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2003
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2003
Report Date:
2003

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
GLP compliance:
yes
Type of method:
other: by means of a tensiometer

Test material

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

Results and discussion

Surface tension
Surface tension:
72.8 mN/m
Temp.:
20 °C
Conc.:
1 000 mg/L

Any other information on results incl. tables

Conc. (incl. qualifier): CA 1000 mg/L

Applicant's summary and conclusion

Conclusions:
In conclusion, the surface tension of ucb 22060 in water (at a concentration of about 0.1 %)
was determined to be
72.8 mN/m at 20.5°C t 0.5°C.
Executive summary:

The determination of the surface tension of an aqueous solution of ucb 22060 was based on the OECD Guideline No. 115: “Surface Tension of Aqueous Solutions” (1995) and on the EEC Directive 92/69, Part A, Methods for the determination of physico-chemical properties, A.5 “Surface tension”, EEC Publication No. L383, December 1992. The calibration factor $t)was determined to be 1.0314 for double distilled water (Table 1). The data are part of RCC’S instruments’ files and a copy is presented in the raw data of the present study. Table 2 shows the individual measurements for the surface tension of the aqueous test item solution. From these, the mean and the corrected value for the given solution were calculated and shown in the same table. The tabulated values represent rounded results obtained from calculation using the exact raw data. In conclusion, the surface tension of ucb 22060 in water (at a concentration of about 0.1 %) was determined to be 72.8 mN/m at 20.5°C t 0.5°C. Based on the criteria as outlined in the EEC Guideline, ucb 22060 is not a surface active substance.