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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:
04 AUG 2009 to 11 JAN 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to same study
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
differential scanning calorimetry
Melting / freezing pt.:
> 350 °C

Chromium (III) hydroxide sulphate exhibits no melting effects up to 350 °C. An endothernic effect was observed at about 60 °C. This was caused by the release of water during crystallization.

Conclusions:
Chromium (III) hydroxide sulphate exhibits no melting effects up to 350 °C.
Executive summary:

The melting point of the sample was assessed in a GLP-study according to EU Method A.1 via differential scanning calorimetry. The sample exhibits no melting effects up to 350 °C. Multiple endothernic effects were observed at about 60 °C. This was caused by the release of water during crystallization.

Description of key information

The melting point of the sample was assessed in a GLP-study according to EU Method A.1 via differential scanning calorimetry. The sample exhibits no melting effects up to 350 °C. Multiple endothermic effects were observed at about 60 °C. This was caused by the release of water during crystallization.

Key value for chemical safety assessment

Additional information