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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: company study at state of the art laboratory

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report date:
2010

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Doc No 10-82070 (18.6.2010)
Deviations:
not specified
Principles of method if other than guideline:
Observation of sample in screw-capped tube cooled in thermostat
GLP compliance:
not specified
Type of method:
method to determine freezing temperature

Test material

Constituent 1
Chemical structure
Reference substance name:
But-3-en-3-olide
EC Number:
211-617-1
EC Name:
But-3-en-3-olide
Cas Number:
674-82-8
Molecular formula:
C4H4O2
IUPAC Name:
4-methylideneoxetan-2-one

Results and discussion

Melting / freezing point
Melting / freezing pt.:
ca. -12 °C
Atm. press.:
ca. 1 013 hPa
Decomposition:
yes
Decomp. temp.:
> 161 °C
Sublimation:
no

Applicant's summary and conclusion

Conclusions:
The melting point of the test item was determined to be - 12 °C.
Executive summary:

The melting point of the test item was determined to be - 12 °C.