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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
vapour pressure
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: The vapour pressure was obtained by the Effusion method: vapor pressure balance, according to the EU Method A.4.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Report date:
2000

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
GLP compliance:
yes
Type of method:
effusion method: vapour pressure balance

Test material

Constituent 1
Chemical structure
Reference substance name:
5-methyl-1,2-oxazole-4-carboxylic acid
EC Number:
700-400-1
Cas Number:
42831-50-5
Molecular formula:
C5H5NO3
IUPAC Name:
5-methyl-1,2-oxazole-4-carboxylic acid

Results and discussion

Vapour pressureopen allclose all
Temp.:
ca. 20 °C
Vapour pressure:
ca. 0 hPa
Temp.:
ca. 50 °C
Vapour pressure:
ca. 0.002 hPa

Applicant's summary and conclusion

Conclusions:
Vapour pressure at 20°C is 1.6 *10-6 hPa
Vapour pressure at 50°C is 2.3 *10-3 hPa