Registration Dossier
Registration Dossier
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EC number: 266-039-2 | CAS number: 65997-03-7 The low boiling fraction obtained by the distillation of tall oil. Contains fatty acids such as palmitic, stearic, oleic and linoleic as well as neutral materials.
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
Vapour pressure: 0.137 Pa obtained by prediction
Key value for chemical safety assessment
- Vapour pressure:
- 0.137 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 constituent of Tall Oil Heads was multiplied by its vapour pressure. The result obtained was summed together to obtained the predicted total vapour pressure of the substance.
TOH 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 0.137 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.
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