Registration Dossier
Registration Dossier
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EC number: 216-381-3 | CAS number: 1570-64-5
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
Vapour Pressure 26.66Pa at 293K measured to OECD 104.
Key value for chemical safety assessment
- Vapour pressure:
- 26.66 Pa
- at the temperature of:
- 293 K
Additional information
The study performed by Dantest (1983) was determined to be the key study based on the fact that it is a guideline study carried out at an appropriate temperature for evaluating environmental fate and behaviour of the substance. Although the 4-chloro-2 -methylphenol is handled in the molten phase, it is considered that exposure to the molten phase is reduced by the inherent properties the substance. The melting point of 46 - 50°C means that any spillage/exposure outside standard plant operating conditions will result in a solid.
The study submitted by BASF (1994) quotes the vapour pressure 70°C, no guideline was cited and it was felt that although vapour pressure at this temperature is required for production operating conditions, the value is not appropriate for risk assessment purposes.
A third value of 3.2 Pa at 25°C (Seiber et al.) was included in the Danish review document, however this was considered less reliable by the review panel as it states the result was found in a ‘laboratory study'. The study was not included in this document.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.
