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Boiling point

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Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2015-05-13 to 2015-06-23
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to same study
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
signed, 2013-03-22
Type of method:
differential scanning calorimetry
Remarks:
and capillary method
Specific details on test material used for the study:
- Storage condition of test material: Ambient temperature, keep container tightly closed, store dry
Atm. press.:
1 005.2 hPa
Decomposition:
yes
Decomp. temp.:
170 °C

Results

DSC:

In the temperature range of 30 °C – 220 °C, a broad endothermic effect was observed. The rise of the base line at approximately 240 °C can be attributed to the evaporation of gas, which might be caused by the decomposition of the test item.

Results of the DSC-measurements

 No.  Sample weight / mg  Onset of Effect / °C  Range of effect / °C  Weight loss / mg  Atmospheric pressure / hPa
 PN8829  10.63  30.69  30 – 220 (endo)  6.49  1005.2
 PN8830  9.37  28.96  30 – 220 (endo)  5.78  1005.2

Capillary measurements:

In the capillary measurements a phase transition, but no melting, can be observed at a temperature of approximately 61 °C. At approximately 170 °C the decomposition of the test item started. No melting of the test item under atmospheric pressure could be observed up to a maximum temperature of 363 °C.

 Temperature [°C](1st / 2nd set of three measurements)  Observations
 61 / 63  The test item becomes glassy
 179 / 170  The colour of the test item changed to grey
 230 / 210  The colour of the test item changed to light brown
 305 / 280  The colour of the test item changed to dark brown
 350 / 355  The colour of the test item changed to black
Conclusions:
The test item strontium neodecanoate has no boiling point up to the maximum temperature of 500 °C at atmospheric pressure (1005.2 hPa) as determined by differential scanning calorimetry and the capillary method according to Regulation EC No. 440/2008 Method A.2. and OECD Test Guideline 103 (1995). The test item shows a decomposition starting at approximately 170 °C.

Description of key information

Strontium neodecanoate has no boiling point.

Key value for chemical safety assessment

Additional information

The test item strontium neodecanoate has no boiling point up to the maximum temperature of 500 °C at atmospheric pressure (1005.2 hPa) as determined by differential scanning calorimetry and the capillary method according to Regulation EC No. 440/2008 Method A.2. and OECD Test Guideline 103 (1995). The test item shows decomposition starting at approximately 170 °C.

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