Registration Dossier
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EC number: 939-638-8 | CAS number: 90268-37-4
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
vapour pressure: <= 0.0026 Pa
Key value for chemical safety assessment
- Vapour pressure:
- 0.003 Pa
- at the temperature of:
- 20 °C
Additional information
In the Klimisch 2 non-GLP study from Kintrup (2012) the vapour pressure of Butanedioic acid, sulfo-, 4-C12-14-alkyl esters, disodium saltswas calculated using the melting and boiling point.An estimation procedure in accordance with the test method OECD Guideline 104 “OECD Guideline For The Testing Of Chemicals, adopted by the Council on 23 March 2006, Vapour Pressure” ANNEX Estimation Method newest version (Robert S. Boethling, Donald Mackay, Handbook of Property Estimation Methods for Chemicals, Lewis Publishers, year of publication 2000, Cap. 3 - Vapour Pressure, Grain-Watson Method, p. 53 – 65) was used. This method is applied for vapour pressures between 10^3 to 10^-7 mbar. This deviates from the older version published in OECD Guideline 104. It was used due to the differentiation between solids and liquids, which results in a more precise estimate.
Using a melting point of 221 °C and a boiling point of 290 °C (both values might be underestimations due to decomposition) resulted in a finding that Butanedioic acid, sulfo-, 4-C12-14-alkyl esters, disodium saltshas a vapour pressure of ≤ 2.6*10-3Pa (≤ 2.6*10-5mbar) at 20 °C according to the definition in the OECD Guideline 104 (Grain-Watson estimation).
This value is considered reliable for the further risk assessment.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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