Registration Dossier
Registration Dossier
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EC number: 287-809-4 | CAS number: 85586-07-8
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
The vapour pressure is < 0.18 Pa at 25 °C (estimation method).
Key value for chemical safety assessment
- Vapour pressure:
- 0.18 Pa
- at the temperature of:
- 25 °C
Additional information
The value of vapour pressure is estimated based on the study reports for ''Sulfuric acid, mono-C12 -14-alkyl (even numbered) esters, sodium salts'' and ''sodium dodecyl sulphate''.
According to the theoretical principle of Raoult’s law, the vapour pressure of mixture is equal to the mole-fraction-weighted sum of the components' vapour pressures:
ptot= ∑ pixi
The vapour pressure of a composition should be lower than the vapour pressure of the component which has the highest vapour pressure in its pure form. Therefore the upper limit of the vapour pressure is decreased on the basis of the calculated value for "sodium dodecyl sulfate", with respect to the Grain-Watson result for the substance itself, which is likely to be overestimated.
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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