Registration Dossier
Registration Dossier
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EC number: 270-478-5 | CAS number: 68442-22-8
Surface tension
Administrative data
Link to relevant study record(s)
Description of key information
The surface tension of the substance is 64.6 mN/m at 21.4 deg. C
Key value for chemical safety assessment
- Surface tension:
- 64.6
- in mN/m at 20°C and concentration in mg/L:
- 1 200
Additional information
The surface tension of the substance was determined by a ring method following EU Method A.5 and OECD 115 guidelines. A White Electrical Institute interfacial tension balance was used which gave a direct reading for surface tension that was within the required accuracy of +/- 0.5mN/m as a result of the reduced ring dimensions.
A test solution was prepared by loading at a nominal concentration of 1.20 g/L. Measurements on a 90% dilution of the supernatant obtained after centrifuging gave an average surface tension measurement of 64.6 mN/m at 21.40C.
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