Registration Dossier
Registration Dossier
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EC number: 232-304-6 | CAS number: 8002-26-4 A complex combination of tall oil rosin and fatty acids derived from acidulation of crude tall oil soap and including that which is further refined. Contains at least 10% rosin.
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Estimated by calculation
- Adequacy of study:
- key study
- Study period:
- 2010
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: The data was obtained using an appropriate estimation method
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- The vapour pressure of each constituent of the UVCB submission substance was calculated using MPBPWIN v 1.43 (ref). The vapour pressure of the whole substance was calculated by multiplying the mole fraction of each constituent by its vapour pressure and summing the result.
- GLP compliance:
- no
- Remarks:
- Estimated by calculation
- Type of method:
- other: Estimated by calculation
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 0.004 Pa
- Conclusions:
- A vapour pressure value of 0.0038 Pa was obtained for the substance using an appropriate estimated method. The result is considered reliable.
Reference
Description of key information
Vapour pressure: 0.00385 Pa obtained by estimation
Key value for chemical safety assessment
- Vapour pressure:
- 0.004 Pa
- at the temperature of:
- 25 °C
Additional information
The vapour pressure of the whole substance was determined by calculation. The mole fraction of each constituents of Distilled Tall Oil was multiplied by its vapour pressure. The result obtained was summed together to obtained the predicted total vapour pressure of the substance.
DTO is a UVCB substance and predicted vapour pressure for the whole substance is preferred for human health assessment purpose while the vapour pressure of individual constituents is used for environmental risk characterisation. A calculated vapour pressure of 0.00385 Pa was obtained for the whole substance.
Individual samples could have higher vapour pressure if any unexpected impurities are present.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
