Registration Dossier
Registration Dossier
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EC number: 220-020-5 | CAS number: 2605-79-0
Surface tension
Administrative data
Link to relevant study record(s)
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 24 January 2012-16 May 2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
- Surface tension:
- >= 31.4 - <= 31.5 mN/m
- Temp.:
- 21.5 °C
- Conc.:
- 1.02 g/L
- Conclusions:
- C10 AO is surface active
- Executive summary:
The surface tension of N,N-dimethyldecylamine N-oxide has been determined to be in the range 31.4 -31.5 mN/m at a concentration of 1.02 g/L at 21.5 +/-0.5 °C using a ring method designed to be compatible with Method A5 Surface Tension of Commission Regulation (EC) No 440/2008 and OECD TG 115. The substance is considered to be surface-active.
Reference
Description of key information
The surface tension is 31.4 -31.5 mN/m at 21.5 +/-0.5 °C
Key value for chemical safety assessment
- Surface tension:
- 31.4
- in mN/m at 20°C and concentration in mg/L:
- 1 020
Additional information
The surface tension of the substance was measured in a test conducted in accordance with the procedure described in EU Regulation (EC) 440/2008, Annex Part A test A5 (ring method) under GLP [Woolley AJ (2012 )]. Due to the high solubility of the substance, a concentration of 1.02 g/L was used. Measurements were made in duplicate. The derived value for surface tension was 31.4 -31.5 mN/m at 21.5 +/-0.5 °C. The substance is considered to be surface-active.
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