Registration Dossier

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
13 - 15 Feb 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Cross-reference
Reason / purpose:
reference to same study
Reference
Endpoint:
self-reactive substances
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
13 - 15 Feb 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose:
reference to same study
Related information:
Composition 1
Reference:
Composition 0
Qualifier:
according to
Guideline:
other: OECD Guideline 102 (Melting point / Melting Range)
Principles of method if other than guideline:
According to UN RTDG, substances with heat of decomposition below 300 J/g do not need to be tested for self-reactivity.
Furthermore, in section 20.3.3.3 the differential scanning calorimetry (as used for the determination of the melting point of the substance) is considered as a suitable method for the determination of the heat of decomposition.
GLP compliance:
yes (incl. certificate)
Remarks:
Hessisches Ministerium für Umwelt, Klimaschutz, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany
Test material information:
Composition 1

In the temperature range from -100 °C to 500 °C, the thermograms show an endothermic effect beginning at approx. 220 °C which turns into an exothermic effect at 275 °C or 286 °C, respectively. The test item showed no further exothermic effects. The results are summarized in the following table.

No.

Sample weight / mg

Range of effect / °C

Measured energy / J/g

PN14928

10.22

285 - 310 (exothermic)

94.25

PN14944

7.72

275 - 320 (exothermic)

126.12

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report Date:
2018

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
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:
yes (incl. certificate)
Remarks:
Hessisches Ministerium für Umwelt, Klimaschutz, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany
Type of method:
differential scanning calorimetry

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Melting / freezing point
Key result
Melting / freezing pt.:
< -100 °C
Remarks on result:
other: Pressure was not measured

Any other information on results incl. tables

Results

In the temperature range from -100 °C to 220 °C, no endothermic or exothermic effects were observed. The thermograms show an endothermic effect beginning at approx. 220 °C which turns into an exothermic effect at 275 °C or 286 °C, respectively.

 

No.

Sample weight / mg

Onset of Effect / °C

Range of effect / °C

Weight loss / mg

PN14928

10.22

283.00

---

240 - 285 (endo)

285 - 310 (exo)

9.47

 

PN14944

7.72

274.54

---

220 - 275 (endo)

275 - 320 (exo)

6.59

 

 

The test item showed no distinct endothermic signal in the test that can be associated with a freezing point/melting point. The endothermic effect turning into an exothermic effect is associated with boiling under decomposition.

 

Due to no endothermic effect in the temperature range of -100 °C to room temperature the freezing point / melting point of the test item is < -100 °C.

 

Final Results

The test item exhibits no freezing point / melting point in the temperature range of -100 °C to room temperature as determined according to Regulation EC No. 440/2008 Method A.1. and OECD Test Guideline 102 (1995).

Applicant's summary and conclusion