Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

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

Constituent 1
Reference substance name:
propylene oxide
IUPAC Name:
propylene oxide
Constituent 2
Reference substance name:
Methyloxirane
EC Number:
200-879-2
EC Name:
Methyloxirane
Cas Number:
75-56-9
IUPAC Name:
2-methyloxirane
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 S(-) 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".