Registration Dossier

Diss Factsheets

Physical & Chemical properties

Surface tension

Currently viewing:

Administrative data

Link to relevant study record(s)

Referenceopen allclose all

Endpoint:
surface tension
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Justification for type of information:
For details and justification of read-across please refer to the read-across report attached to IUCLID section 13.
Reason / purpose for cross-reference:
read-across source
Key result
Surface tension:
71.8 mN/m
Temp.:
20 °C
Conc.:
1.07 g/L

The measured surface tension was multiplied by the calibration factor (0.9992), resulting in a corrected surface tension of 71.8 mN/m.

Conclusions:
The surface tension of an aqeous test solution of Sodium (S)-lactate at a concentration of 1.07 g/L at 20 °C was 71.8 mN/m.
Executive summary:

In a GLP study conducted according to OECD 115 and EU Method A.5, the OECD harmonized ring method was used for the determination of the surface tension of Sodium (S)-lactate. The surface tension of a test solution at a concentration of 1.07 g/L was 71.8 mN/m at 20.0 °C. According to this, the test substance is considered not to be surface active (< 60 mN/m).

This information is used in a read-across approach in the assessment of the target substance. For details and justification of read-across please refer to the attached report in section 13 of IUCLID.

Endpoint:
surface tension
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because surface activity is not a desired property of the material

Description of key information

In accordance with column 2 of REACH Annex VII, section 7.6., this study does not need to be conducted because surface activity is not a desired property of the test material. But, available data from the enantiomer of the target substance, Sodium (S)-lactate is used by read-across. Sodium (S)-lactate is not surface active, with a surface tension of 71.8 mN/m at 20 °C as shown in a GLP study conducted according to OECD 115 and EU method A.5.

Key value for chemical safety assessment

Surface tension:
71.8
in mN/m at 20°C and concentration in mg/L:
1 070

Additional information