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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2019
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019
Report date:
2019

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Qualifier:
according to guideline
Guideline:
EU Method A.5 (Surface Tension)
GLP compliance:
yes (incl. QA statement)
Type of method:
plate method

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
444-240-8
EC Name:
-
Cas Number:
302933-83-1
Molecular formula:
C55-n H95.5-2n N7 013 Na1.5 (n-0-6) molecular weight: 1097-l4n (n=0-6)
IUPAC Name:
Sodium surfactin
Test material form:
solid: particulate/powder

Results and discussion

Surface tension
Key result
Surface tension:
ca. 30.37 mN/m
Temp.:
19.9 °C
Conc.:
90 vol%

Applicant's summary and conclusion

Conclusions:
The surface tension of an aqueous solution of Sodium surfactin was determined as 30.37 ± 0.30 mN/m at 19.9 °C. One measurement was performed for verification (after 60 minutes). No significant changes and thus no significant dependence on time were observed.
As these values were lower than 60 mN/m, Sodium surfactin was classified as surface active in a concentration of 1.00 g/L.
The surface tension of the negative control lay within the accepted range.
Executive summary:

The surface tension of an aqueous solution of Sodium Surfactin was determined as 30.37 ± 0.30 mN/m at 19.9 °C. One measurement was performed for verification (after 60 minutes). No significant changes and thus no significant dependence on time were observed.

As these values were lower than 60 mN/m, Sodium sufactin was classified as surface active in a concentration of 1.00 g/L.

The surface tension of the negative control lay within the accepted range.