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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:
12 - 19 May 2005
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
GLP compliance:
yes
Type of method:
method to determine freezing temperature
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: 41-2601-2240-7
- Expiration date of the lot/batch: 23 Mar 2006
- Purity: 99.959%
- Synonyms: MTDID 665
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: room temperature in the dark
Key result
Melting / freezing pt.:
-61 °C

Test was done at ambient atmospheric pressure (value not stated). Stable temperatures were observed around the freezing point. A clear phase transition was observed at temperatures of (-56.9) °C (test 1), (-61.2) °C (test 2), and (-61.0) °C (test 3). The average of two repeatable temperatures was reported as the freezing point.

Table, Measured temperatures around the freezing process.

 Temp during test 1 (°C)  Temp during test 2 (°C)  Temp during test 3 (°C)
 (-54.5)  (-61.0)  (-60.0)
 (-54.9)  (-60.9)  (-60.3)
 (-55.3)  (-61.1)  (-60.4)
 (-55.6)  (-61.0)  (-60.6)
 (-56.1)  (-61.2)  (-60.8)
   (-61.2)  (-60.9)
Conclusions:
The freezing point of HFE s-601 is (-61.0) °C (OECD 102)
Executive summary:

The freezing point range of HFE s-601 was determined by placing the test material in an acetone/dry ice bath with temperature probe readings. The study was conducted in accordance with the OECD 102 method and was GLP compliant; therefore the study is considered reliable without restrictions.

Description of key information

The freezing point of HFE s-601 is (-61.0) °C (OECD 102)

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-61 °C

Additional information

The freezing point range of HFE s-601 was determined by placing the test material in an acetone/dry ice bath with temperature probe readings. The study was conducted in accordance with the OECD 102 method and was GLP compliant; therefore the study is considered reliable without restrictions.