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Diss Factsheets

Physical & Chemical properties

Melting point / freezing point

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2008-04-23
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose for cross-reference:
reference to same study
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
1995
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
Directive 92/69 (1992)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
signed 2005-11-22
Type of method:
capillary method
Key result
Melting / freezing pt.:
>= 220.3 - <= 225.7 °C
Decomposition:
no
Sublimation:
no

The determination of the melting point was performed by visual judgement using the capillary method. The test item showed five stages of melting. the melting starts at 220 °C and ends at 226 °C. No solid particles were left.

Experiment No. Stage A [°C] Stage B [°C] Stage C [°C] Stage D [°C] Stage E [°C]
1  220.3 221.4 223.6 224.9 225.5 
2  220.3 221.5 223.6 224.8 225.8
Mean value  220.3 221.5 223.6 224.9 225.7

Stage A: Beginning of melting/ wet point

Stage B: Shrinking point

Stage C: Collapse point

Stage D: Liquefying point

Stage E: Final stage of melting

Conclusions:
The test item Imidazolhydrobromid has a melting range of 220.3 °C to 225.7 °C.

Description of key information

The test item Imidazolhydrobromid has a melting range of 220.3 °C to 225.7 °C.

Key value for chemical safety assessment

Additional information