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Registration Dossier
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EC number: 308-783-3 | CAS number: 98510-75-9
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
1.52E-12 Pa at 25°C (Modified Grain Method; Episuite v4.11, MPBMWIN v 1.43)
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 25 °C
Additional information
The expected value of vapour pressure for the pure substance cannot be measured due to residual content of solvent (water) which results in a higher solvent vapour pressure than test substance vapour pressure. The residual content of solvent cannot be reduced below the limit of measurement with reasonable effort. Instead, a calculation is provided.
The vapour pressure of Undecylenamidopropyl Betaine was calculated to be 1.52E-12 Pa at 25°C, 3.85E-11 Pa at 40°C and 4.83E-7 Pa at 95°C (Modified Grain Method; Episuite v4.11, MPBMWIN v 1.43). However, the lowest value accepted by IUCLID was 1E-09 Pa.
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