Registration Dossier
Registration Dossier
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EC number: 411-950-4 | CAS number: 96562-58-2 DHPPME; MAK-ME; MEHPOPS; R-MAQ-ME
Boiling point
Administrative data
Link to relevant study record(s)
Description of key information
Campbell et al. (1993): Under the conditions of the study, the boiling point could not be determined as the test material was observed to darken at temperatures in the region of 503 to 523 K, suggesting decomposition.
Brunner (1991): Under the conditions of this study, the normal boiling point was estimated to be 321.5 °C using a vapour pressure calculation.
Key value for chemical safety assessment
- Boiling point at 101 325 Pa:
- 321.5 °C
Additional information
Two key studies are available to address this endpoint. In both it was determined that it was not possible to carry out an experimental determination of boiling point due to decomposition of the test material.
Campbell et al. (1993)
The boiling point of the test material was investigated in accordance with the standardised guidelines OECD 103 and EU Method A.2 under GLP conditions by the Siwoloboff Method. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).
Under the conditions of the study, the boiling point could not be determined as the test material was observed to darken at temperatures in the region of 503 to 523 K, suggesting decomposition.
Brunner (1991)
As part of a guideline study to determine the vapour pressure of the test material, the boiling point was estimated by calculation under GLP conditions. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).
The vapour pressure measurements show that decomposition starts in the region of 270 °C and 30 kPa, and therefore the normal boiling point cannot be determined experimentally.
The normal boiling point at 101.325 kPa may be estimated by using the vapour pressure equation ln(p/Pa) = 21.0429 - 4101.35 / (109.5 + t/°C).
Estimating the normal boiling point using the vapour pressure equation resulted in a value of 321.5 °C being calculated with the maximum error estimated to be 2 K.
Under the conditions of this study, the normal boiling point was estimated to be 321.5 °C using a vapour pressure calculation.
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