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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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Endpoint:
vapour pressure
Type of information:
calculation (if not (Q)SAR)
Remarks:
estimated by calculation
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Non-GLP, company data, reliable with restrictions
Justification for type of information:
Hydrocarbons, C9-C10, aromatics, >1% Naphthalene are a combination of Hydrocarbons, C9 Aromatics and Hydrocarbons, C10-C12 Aromatics. Read across data is available for Hydrocarbons, C9 Aromatics and Hydrocarbons, C10-C12 Aromatics and the worst case scenario for each end point has been presented.
Reason / purpose for cross-reference:
read-across: supporting information
Qualifier:
no guideline followed
Principles of method if other than guideline:
ExxonMobil Chemical internal calculation tool based ion boiling range and density.
GLP compliance:
no
Remarks:
Estimated by calculation
Type of method:
other: calculation using ESIG tool
Key result
Temp.:
20 °C
Vapour pressure:
0.2 kPa
Conclusions:
The vapour pressure of Hydrocarbon C9 aromatics, is 0.2 kPa.
Executive summary:

A standard vapour pressure calculation tool was used. This data is considered reliable and suitable for use for this endpoint. The vapour pressure of Hydrocarbon, C9, aromatics, is 0.2 kPa.

Endpoint:
vapour pressure
Type of information:
calculation (if not (Q)SAR)
Remarks:
Estimated by calculation
Adequacy of study:
weight of evidence
Study period:
2010
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Acceptable, well-documented study report which meets basic scientific principles, no GLP.
Justification for type of information:
Hydrocarbons, C9-C10, aromatics, >1% Naphthalene are a combination of Hydrocarbons, C9 Aromatics and Hydrocarbons, C10-C12 Aromatics. Read across data is available for Hydrocarbons, C9 Aromatics and Hydrocarbons, C10-C12 Aromatics and the worst case scenario for each end point has been presented.
Reason / purpose for cross-reference:
read-across: supporting information
Qualifier:
according to guideline
Guideline:
other: ExxonMobil Chemical internal method
Principles of method if other than guideline:
Calculated based on boiling range and density.
GLP compliance:
no
Remarks:
Estimated by calculation
Type of method:
other: calculated
Key result
Temp.:
20 °C
Vapour pressure:
0.06 kPa
Key result
Transition / decomposition:
no
Conclusions:
The calculated vapour pressure at 20°C is 0.06 kpa according to ExxonMobil internal methodology.
Executive summary:

The calculated vapour pressure at 20°C is 0.06 kpa according to ExxonMobil internal methodology.

Description of key information

Hydrocarbons, C9-C10, aromatics, >1% Naphthalene are a combination of Hydrocarbons, C9 Aromatics and Hydrocarbons, C10-C12 Aromatics. Read across data is available for Hydrocarbons, C9 Aromatics and Hydrocarbons, C10-C12 Aromatics and the worst case scenario for each end point has been presented.

The vapour pressure of the Hydrocarbons, C9, aromatics was estimated to be <1 kPa at 20°C.

The calculated vapour pressure of Hydrocarbons, C10, aromatics, >1% naphthalene is 0.06 kPa at 20°C.

 

This data is used for read across to Hydrocarbons, C9-C10, aromatics, >1% Naphthalene.

Key value for chemical safety assessment

Additional information

The vapour pressure of the Hydrocarbons, C9, aromatics was estimated to be <1 kPa at 20°C.

The calculated vapour pressure of Hydrocarbons, C10, aromatics, >1% naphthalene is 0.06 kPa at 20°C.