Registration Dossier
Registration Dossier
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EC number: 939-647-7 | CAS number: 1474044-68-2
Surface tension
Administrative data
Link to relevant study record(s)
Description of key information
Experimental value of surface tension: 28.8mNm at 21°C for a test item solution at 1g/l
Key value for chemical safety assessment
- Surface tension:
- 28.8
- in mN/m at 20°C and concentration in mg/L:
- 1 000
Additional information
The determination of the surface tension was performed by the ring method according to the test method A.5. "Surface Tension" (EC) No 440/2008 of 30 May 2008 similar to OECD guideline for testing of chemicals OECD 115 and GLP. No deviation from the guideline was observed in the study.
The balance in the tensiometer was controlled with a test by means of a nickel weight with 200 mg and 500 mg. The results were within the tolerances. The apparatus was controlled by using n-Hexane it was possible to control the correct function of the instrument. The determined result was in the expected range. The apparatus was therefore considered acceptable for use.
The mean surface tension of the test item was: 28.8 mN/m (corrected value) at 21°C . Considering that demineralized water has a surface tension of 72.75 mN/m at 20 °C, test items showing a surface tension lower than 60 mN/m under the conditions of this method should be regarded as being surface-active materials. The test item was considered as surface-active in the experimental conditions used.
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