Registration Dossier
Registration Dossier
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EC number: 310-288-2 | CAS number: 161907-78-4 A complex mixture of oxygenated hydrocarbons produced by the distillation of residues from the manufacture of ethylene glycol monoethyl ether. It consists predominantly of a mixture of di-, tri-, tetra- and pentaethylene glycol monoethyl ethers having carbon numbers predominantly in the range C6 to C12 and boiling in the range of approximately 200°C to 300°C (392°F to 572°F).
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
2-(2-(2-ethoxyyethoxy)ethoxy)ethanol: 1.15Pa @ 20C estimated from Antoine constants measured at elevated temperature. 1Pa @20C (QSAR)
2-(2-(2-ethoxyethoxy)ethoxy)ethanol: QSAR prediction 0.3Pa @ 20C
3,6,9,12-tetraoxatetradecan-1-ol: QSAR prediction 0.012Pa @ 20C
Key value for chemical safety assessment
- Vapour pressure:
- 1 Pa
- at the temperature of:
- 20 °C
Additional information
There is not data available for the UVCB substance itself. Measured data is available for the lowest molecular weight main component, 2-(2-(2-ethoxyyethoxy)ethoxy)ethanol, indicating that the vapour pressure at 20C would be approximately 1Pa. A reliable QSAR predicts a similar value for the vapour pressure of this same substance and that the higher molecular weight main component, not surprisingly, has a much lower vapour pressure. On the reasonable assumption that the lower molecular weight main component will dominate the vapour pressure, the measured vapour pressure for 2-(2-(2-ethoxyethoxy)ethoxy)ethanol will be used to derive the key parameter for this end point.
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