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Physical & Chemical properties

Melting point / freezing point

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Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Testing was conducted between 19 May 2011 and 06 August 2011.
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: see 'Remark'
Remarks:
Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results. The study report was conclusive, done to a valid guideline and the study was conducted under GLP conditions.
Qualifier:
according to guideline
Guideline:
other: The determination was carried out using the pour point method BS 2000: Part 15 (equivalent to ISO 3016), designed to be compatible with Method A1 Melting/Freezing Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008 and OECD Method 102
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
pour point
Melting / freezing pt.:
< 253 K
Decomposition:
no
Sublimation:
no
Remarks on result:
other: No atmospheric pressure was recorded for this endpoint.

Results

The measured stationary point is shown in the following table.

Table 5.1

Measurement

Temperature (°C)

Stationary point (°C)

<-23

Pour point (°C)

<-20
Conclusions:
The pour point of the test item has been determined to be less than -20°C (<253 K).
Executive summary:

Method

The determination was carried out using the pour point method BS 2000: Part 15 (equivalent to ISO 3016), designed to be compatible with Method A1 Melting/Freezing Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 102 of the OECD Guidelines for Testing of Chemicals, 27 July 1995.

Conclusion

The pour point of the test item has been determined to be less than -20°C (<253 K).

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2012
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The study was conducted in accordance with internationally recognised guidelines, but was not conducted according to GLP.
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
GLP compliance:
no
Type of method:
thermal analysis
Melting / freezing pt.:
< -50 °C
Conclusions:
The melting point of the test item was <-50 °C.
Executive summary:

The measurement of the liquid test item in open glass crucible showed no endothermic effect (melting) in the temperature range -50 to 180 °C. The melting point is therefore considered to be <-50 °C.

Description of key information

Melting point/freezing point = <-20°C (<253 K); Butler & White (2011); BS 2000: Part 15 (pour point)
Melting point/freezing point = <-50°C (<323 K); Dornhagen (2012); OECD 102

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-20 °C

Additional information

The overall endpoint determination was made using pour point method BS 2000: Part 15 (equivalent to ISO 3016), designed to be compatible with Method A1 Melting/Freezing Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 102 of the OECD Guidelines for Testing of Chemicals, 27 July 1995.

The pour point of the test item was determined to be less than -20°C (<253 K).