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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:
October 21, 2011 – November 4, 2011
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Well conducted study, according to EU and OECD guidelines, under Internal management system, certificate of analysis included in the report.
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
Adopted July 27, 1995
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
May 31, 2008
Deviations:
no
GLP compliance:
no
Remarks:
Internal management system
Type of method:
thermal analysis
Melting / freezing pt.:
> 49 - < 57 °C

Accuracy check

Measured values for Indium:

- onset temperature      : 156.8°C

- enthalpy of melting     : 29.01 J/g

The measured values are within the acceptance limits.

Test substance

The measured values for the test substance are mentioned below. The last column shows the mean values. The mean values for the initial and final melting temperature are rounded to the nearest 0.5°C.

 

 

Test 1

Test 2

Mean

Initial melting temperature [°C]

48.9

49.0

49.0*

Final melting temperature [°C]

56.9

57.5

57.0*

Enthalpy of melting [J/g]

211.9

186.7

199.3

* mean of initial and final melting temperature is rounded to

 the nearest 0.5°C

 

The melting range of the test substance is 49.0°C - 57.0°C.

The enthalpy of melting is 199.3 J/g.

The DSC curves are in the attachment.

Conclusions:
The melting range of dihexadecylperoxodicarbonate is 49°C - 57°C.
Executive summary:

The melting range of dihexadecylperoxodicarbonate was determined according to EC Regulation No 440/2008, Guideline A.1and according to OECD Guideline 102 , and in accordance with European Chemicals Agency (ECHA), Guidance on information requirements and chemical safety assessment, Chapter R.7a, Endpoint specific guidance, May 2008.

The melting range of dihexadecylperoxodicarbonate is 49.0°C - 57.0°C.

Description of key information

The melting range of dihexadecylperoxodicarbonate is 49°C - 57°C.

Key value for chemical safety assessment

Additional information