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EC number: 700-810-0 | CAS number: 58190-62-8
Surface tension
Administrative data
Link to relevant study record(s)
- Endpoint:
- surface tension
- Data waiving:
- study technically not feasible
- Justification for data waiving:
- other:
- Justification for type of information:
- JUSTIFICATION FOR DATA WAIVING
The surface tension study was not performed because the substance is hydrolytically unstable in water (half-life time < 4 minutes). In accordance with Section 2 of REACH Annex XI, testing was omitted because it is technically not possible to conduct the study. - Reason / purpose for cross-reference:
- data waiving: supporting information
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Remarks:
- Conducted with the hydrolysis product MPKO
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Deviations:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- not specified
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- OECD harmonised ring method
- Key result
- Surface tension:
- ca. 69.5 mN/m
- Temp.:
- 20.2 °C
- Conc.:
- 1 g/L
- Conclusions:
- The surface tension of a test solution at a concentration of 1 g/L and at 20.2 °C was 69.5 mN/m and therefore, it was determined to be not surface active.
- Executive summary:
The OECD harmonized ring method (OECD Guideline 115 and EU Method A.5) was used for the determination of the surface tension of MPKO. The surface tension of a test solution at a concentration of 1 g/L and at 20.2 °C was 69.5 mN/m. According to this, the test substance is considered not surface active.
Referenceopen allclose all
Description of key information
The test substance hydrolyses quickly (half-life time < 4 minutes) therefore surface tension of the test substance cannot be determined. The surface tension of MPKO, the hydrolysis product of OS2600, was determined to be 69.5 mN/m at at temperature of 20.2°C and a concentration of 1 g/L.
Key value for chemical safety assessment
- Surface tension:
- 69.5
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
Data waiving (study technically not feasible): The surface tension study was not performed because the substance is hydrolytically unstable in water (half-life time < 4 minutes). In accordance with Section 2 of REACH Annex XI, testing was omitted because it is technically not possible to conduct the study.
Supporting study: The OECD harmonized ring method (OECD Guideline 115 and EU Method A.5) was used for the determination of the surface tension of the analogue substance MPKO. The surface tension at a concentration of 1 g/L and at 20.2 °C was 69.5 mN/m. According to this, the test substance is considered not surface active.
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