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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Vapour pressure

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
vapour pressure
Type of information:
(Q)SAR
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with limited documentation / justification
Justification for type of information:
QSAR calculation
Qualifier:
no guideline followed
Principles of method if other than guideline:
QSAR calculation: Mean VP of Antoine & Grain methods
GLP compliance:
no
Type of method:
other: Mean VP of Antoine & Grain methods
Key result
Temp.:
25 °C
Vapour pressure:
0.274 Pa
Remarks on result:
other: calculated by MPBVP v1.43, Mean VP of Antoine & Grain methods, 3MHHPA and 4MHHPA
Conclusions:
Vapour pressure of hexahydromethylphthalic anhydride (MHHPA) is considered as 0.274 Pa at 25 degree C.
Executive summary:

According to calculation by MPBPVP v1.43 (Mean VP of Antoine & Grain methods), vapour pressure of MHHPA is considered as 0.274 Pa at 25 degree C

Description of key information

Vapour pressure: 0.274 Pa at 25 deg C

Key value for chemical safety assessment

Vapour pressure:
0.274 Pa
at the temperature of:
298.15 K

Additional information

Vapour pressure assessed on a single study, reporting an estimation method using (Q)SAR techniques. Such methods were used as the expected vapour pressure was at the lower limit of that which can be reliably determined experimentally.

According to calculation by MPBPVP v1.43 (Mean VP of Antoine & Grain methods), vapour pressure of MHHPA is considered as 0.274 Pa at 25 degree C