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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP compliant, guideline study, available as unpublished report, no restrictions, fully adequate for assessment

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1995
Report date:
1995

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
GLP compliance:
yes
Type of method:
thermal analysis

Test material

Constituent 1
Chemical structure
Reference substance name:
1,4-Dimethyl-1H-pyrazole
EC Number:
600-813-6
Cas Number:
1072-68-0
Molecular formula:
C5H8N2
IUPAC Name:
1,4-Dimethyl-1H-pyrazole
Details on test material:
- Name of test material (as cited in study report):1,4-Dimethylpyrazol
- Storage condition of test material: room temperature, avoid moist and acid.

Results and discussion

Melting / freezing point
Melting / freezing pt.:
-45.8 °C
Remarks on result:
other: standard atmosphere

Any other information on results incl. tables

Preliminary measurement: -43 °C. First measurement: -45.8 °C. Second measurement: -45.7 °C. Third measurement: -45.8 °C. Average: -45.8 °C ± 0.1 K.

Applicant's summary and conclusion