Registration Dossier

Administrative data

Endpoint:
flash point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2002
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The result was obtained from a collection of reliable data which has been subject to peer-review and in which the original data sources are traceable.

Data source

Reference
Reference Type:
review article or handbook
Title:
Unnamed
Year:
2002

Materials and methods

Principles of method if other than guideline:
Pensky Martens apparatus according to 67/548 Annex V.
GLP compliance:
no
Type of method:
closed cup

Test material

Reference
Name:
Unnamed
Type:
Constituent
Type:
Constituent
Details on test material:
Test material was racemate from both R(+) and S(-) propylene oxide. This endpoint is not measured / determined with enantio-selective sensors.
Therefore the R(+) value is identical to the racemate endpoint.

Results and discussion

Flash point
Flash point:
-40 °C
Remarks on result:
other: Average taken from studies which used an approved testing method.

Any other information on results incl. tables

The flash point (closed cup) has been reported as -44°C (BASF AG Material Safety Data Sheet, 1995) and -37°C (Elm, R, cited in Ullmans Encyklopädie der technischen Chemie, 1980). Both tests were reportedly conducted using an accepted Annex V test method (Penskey-Martens apparatus) and although actual data were not provided, these values are supported by estimates based on vapour pressure and lower explosive limit data which gave values of between -43.4°C and -38.4°C. Values of -35°C and -37°C are widely quoted in secondary sources.

Applicant's summary and conclusion

Conclusions:
A flash point of the substance of -40°C was selected from the available literature data. Together with a boiling point below 35°C the substance must therefore be classified as “Extremely Flammable R12 / H224".