Registration Dossier
Registration Dossier
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EC number: 223-861-6 | CAS number: 4098-71-9
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
The vapor pressure curve of isophorone diisocyanate has been measured with a vapor pressure balance in satisfactory accordance to OECD TG 104 at temperatures between 9.5 °C and 44.1 °C. The Antoine equation obtained by least-squares fit is:
VP [hPa] = 10**(31.84-23124/(T+639.99)
This corresponds to 0.000635 hPa at 20 °C, 0.00117 hPa at 25 °C and 0.0212 hPa at 50 °C
Key value for chemical safety assessment
- Vapour pressure:
- 0.063 Pa
- at the temperature of:
- 23 °C
Additional information
The acceptable restrictions of the key study (guideline study) should be noted: Insufficient characterization of test substance (identity, purity), significant scattering of results.
Evidence for the reliability of this study comes from:
- QSAR check with MpBpWin v1.41 from the EPIWIN software suite (v3.11) predicts 0.00115 Torr (0.0015 hPa) at 25 °C, which is in satisfactory agreement.
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