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Physical & Chemical properties

Melting point / freezing point

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Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2016-12-05
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
27. July 1995
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
31. May 2008
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
other: Metal block capillary method
Key result
Decomposition:
yes
Decomp. temp.:
ca. 148 °C
Remarks on result:
not determinable

- Preliminary test: At about 155 °C the colour of the test item started to change from light yellow to blue-green including air bubbles. The test item did not melt, but decomposed.

- Main test: At about 148 °C the colour of the test item changed and no clear melt could be observed. The test item did not melt, but decomposed.

Conclusions:
At about 148 °C the colour of the test item changed and no clear melt could be observed. The test item did not melt, but decomposed.
Executive summary:

The test was carried out according to OECD guideline 102 and EC method A.1. Capillary tubes filled with the test item were heated in a metal block. The test item starts to decompose at 148 °C, hence no melting point could be observed.

Description of key information

For this endpoint one experimental study is available, which has been conducted according to OECD 102, metal block capillary method. It was observed that the test item starts to decompose at 148 °C, hence no melting point could be observed.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
148 °C

Additional information