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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:
13 Jul 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose:
reference to same study
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
2008
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
1995
Qualifier:
according to
Guideline:
EPA OPPTS 830.7200 (Melting Point / Melting Range)
Version / remarks:
1998
Qualifier:
according to
Guideline:
other: CIPAC MT 1: Freezing Point
Version / remarks:
2009
GLP compliance:
no
Type of method:
differential scanning calorimetry
Key result
Melting / freezing pt.:
< -100 °C
Atm. press.:
1 005 hPa

Results

In the thermograms of the two DSC runs a very small endothermic effect was observed in the temperature range of - 50 °C to - 40 °C, which cannot be assigned to the melting of the test item, due to its low energy of <10 J/g.

Results of the DSC-measurements

No.

Sample weight / mg

Onset of Effect / °C

Range of effect / °C

Weight loss / mg

Atmospheric pressure / hPa

PN9161

11.48

-47.51

-50 to -40 (endo)

11.19

1004.8

PN9162

12.09

-47.53

-50 to -40 (endo)

11.56

1004.8

 

Final Results

The test item has no melting point down to -100 °C at atmospheric pressure (1005 hPa) as determined by differential scanning calorimetry according to Regulation EC No. 440/2008 Method A.1. and OECD Test Guideline 102 (1995).

Conclusions:
A melting point value of <-100 °C (at 1005 hPa) was determined for the test substance according to E.U. Method A.1.

Description of key information

Melting point: <-100 °C at 1005 hPa (EU Method A.1, differential scanning calorimetry)

Key value for chemical safety assessment

Additional information