Registration Dossier

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
03 Feb - 04 Feb 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
GLP guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016
Report Date:
2016

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
adopted in 1995
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
adopted in 2008
Deviations:
no
Qualifier:
according to
Guideline:
EPA OPPTS 830.7200 (Melting Point / Melting Range)
Deviations:
no
Qualifier:
according to
Guideline:
other: CIPAC MT 1
Version / remarks:
adopted in 2009
Deviations:
no
GLP compliance:
yes (incl. certificate)
Remarks:
Hess. Ministerium für Umwelt, Energie, Landwirtschaft und Verbraucherschutz,Wiesbaden, Germany
Type of method:
differential scanning calorimetry

Test material

Reference
Name:
Unnamed
Type:
Constituent
Specific details on test material used for the study:
Storage conditions: ambient temperature (< 40 °C), keep container tightly closed, protected from sunlight

Results and discussion

Melting / freezing point
Melting / freezing pt.:
>= -35 - <= -33 °C
Atm. press.:
>= 1 005 - <= 1 013 hPa

Any other information on results incl. tables

Results
An endothermic effect (melting) was observed in the temperature range of -40 to -30 °C.

Table 1 – DSC measurement results

Sample weight [mg]

Onset of effect [°C]

Range of effect [°C]

Weight loss [mg]

Atmospheric pressure [hPa]

16.72

-34.99

-40 to -30 (endo)

160 to 500 (exo)

15.82

1005.1

18.31

-33.11

-40 to -30 (endo)

160 to 500 (exo)

15.982

1012.5

 

The endothermic effect seen is assigned to the melting of the test item. Since the onset temperatures in both tests deviate by more than 0.5 K from their mean value of -34.05 °C, the test item has a melting range of -33 to -35 °C.

Applicant's summary and conclusion