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EC number: 233-713-2 | CAS number: 10326-41-7
Surface tension
Administrative data
Link to relevant study record(s)
- 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:
- 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 read-across report attached to IUCLID section 13.
- Reason / purpose for cross-reference:
- read-across source
- Key result
- Surface tension:
- 70.7 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Conclusions:
- Lactic acid is not a surface active substance.
- Executive summary:
The OECD harmonized ring method was used for the determination of the surface tension of lactic acid 93 % aq. The surface tension of a test solution at a concentration of 1 g/L and at 20.0 °C was 70.7 mN/m. According to this, the test substance is considered not to be surface active.
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 read-across report attached to IUCLID section 13.
- Endpoint:
- surface tension
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- supporting study
- Justification for type of information:
- 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 read-across report attached to IUCLID section 13.
- Reason / purpose for cross-reference:
- read-across source
- Surface tension:
- 46 mN/m
- Temp.:
- 25 °C
- Conc.:
- 90 g/L
- Conclusions:
- The surface tension of L-(+)-lactic acid is 46 mN/m at 25 °C.
- Executive summary:
According to Holten the surface tension of L-(+)-lactic acid is 46 mN/m at 25 ° at a concentration of 90 g/L.
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 read-across report attached to IUCLID section 13.
- Endpoint:
- surface tension
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- supporting study
- Justification for type of information:
- 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 read-across report attached to IUCLID section 13.
- Reason / purpose for cross-reference:
- read-across source
- Surface tension:
- 44.9 mN/m
- Temp.:
- 25 °C
- Conc.:
- 79 other: % w/w
- Surface tension:
- 47.3 mN/m
- Temp.:
- 25
- Conc.:
- 20 other: % w/w
- Conclusions:
- Surface tension of a concentrated solution is not a relevant property.
- Executive summary:
Based on the retrieved results, the surface tension of a concentrated solution of L-lactic acid is not a relevant property.
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 read-across report attached to IUCLID section 13.
- Endpoint:
- surface tension
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- supporting study
- Justification for type of information:
- 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 read-across report attached to IUCLID section 13.
- Reason / purpose for cross-reference:
- read-across source
- Surface tension:
- 58.9 mN/m
- Temp.:
- 22 °C
- Conc.:
- 10 g/L
- Conclusions:
- The surface tension of a 1 % solution is not compliant with the test guideline OECD 115, requiring a maximum concentration of 1 g/L.
- Executive summary:
The surface tension of a 1 % solution is not compliant with the test guideline OECD 115, requiring a maximum concentration of 1 g/L.
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 read-across report attached to IUCLID section 13.
Referenceopen allclose all
Description of key information
Lactic acid is not surface active.
Key value for chemical safety assessment
- Surface tension:
- 70.7
- in mN/m at 20°C and concentration in mg/L:
- 1
Additional information
A standardized test conducted according to OECD TG 115 resulted in the determination that a 1 g/L solution of lactic acid in water has a surface tension of 70.7 mN/m. Based on the results, it can be concluded that lactic acid is not a surface active substance.
For details and justification of read-across please refer to the read-across report attached to IUCLID section 13.
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