Registration Dossier
Registration Dossier
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EC number: 208-591-9 | CAS number: 534-17-8
Surface tension
Administrative data
Link to relevant study record(s)
Description of key information
“For the determination of the surface tension read-across is usually not possible. However interpolation may still be possible within homologous series.” [ECHA Guidance on Information Requirements and Chemical Safety Assessment, Chapter R.7a: Endpoint specific guidance, Version 3.0, August 2014].
Even if different cesium salts do not fit in the concept of homologous series, there are values for five cesium salts in water at 20 °C according to OECD 115 and EU A.5 available.
Cesium iodide 69.2 mN/m (at 1.0 g/L)
Cesium hydroxide *H2O 71.1 mN/m (at 1.0 g/L)
Cesium sulphate 71.1 mN/m (at 1.0 g/L)
Cesium nitrate 72.5 mN/m (at 1.0 g/L)
Cesium chloride 72.8 mN/m (at 1.0 g/L)
Cesium salts change in a concentration of 1.0 g/L change the surface tension of water marginally. From the experience with five cesium salts it can be concluded that the surface tension of cesium carbonate is between 69.2 and 72.8 mN/m (20 °C; 1.0 g/L).
Key value for chemical safety assessment
Additional information
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