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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:
6 July - 12 July 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Fully documented study run under GLP and according to international guidelines.
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
capillary method
Key result
Melting / freezing pt.:
< -80 °C
Atm. press.:
ca. 1 atm
Decomposition:
no
Sublimation:
no

Pre-test: the test item was filled into glass vessels and stored at –80 and –20 °C.

Conclusions:
The melting point of the test item is < -20°C. Therefore, no further testing is required according to Annex VII of REACH.
Executive summary:

No melting point or range could be detected. The melting point or range of the test item is < -80 °C (< 193.15 K). No further testing is required according to Annex VII of REACH as the melting point is < -20°C.

Description of key information

The melting point of reaction mass of 2,2'-oxybisbutane (DSBE), DIPE, SBA and 2-methylpropan-2-ol (TBA) is < -80 °C. As the melting point does not need to be determined below a lower limit of -20 °C (Annex VII of REACH), no main study was performed to determine the exact value.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-80 °C

Additional information

The melting point of reaction mass of 2,2'-oxybisbutane (DSBE), DIPE, SBA and 2-methylpropan-2-ol (TBA) was assessed according to OECD 102 resp. EU A.1 under GLP. In the study pre-test, the test item cooled to -80 °C was still liquid after six days of storage at this temperature. As the melting point does not need to be determined below a lower limit of -20 ° C (Annex VII of REACH), no main study was performed to determine the exact value.