Calcium bis(2-ethylhexanoate)

Melting point / freezing point

Link to relevant study record(s)

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2012-06-01 to 2012-08-15

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 102 (Melting point / Melting Range)

Version / remarks:

, 1995

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Version / remarks:

, 2008

Deviations:

no

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.7200 (Melting Point / Melting Range)

Deviations:

no

Qualifier:

according to guideline

Guideline:

other: OECD Test Guideline 113 (1981) Screening Test for Thermal Stability and Stability in Air

Deviations:

no

GLP compliance:

no

Type of method:

differential scanning calorimetry

Atm. press.:

1 013 hPa

Decomposition:

yes

Decomp. temp.:

215 °C

Sublimation:

no

Thermal Stability:

The test itemshowed an exothermal effect in the temperature range of 300 - 410°C with an energy of -80 J/g in a closed glass crucible under nitrogen atmosphere. This effect represents the decomposition of the test item.

Melting point:

The DSC runs in an open glass crucible under nitrogen atmosphere up to the maximum temperature of 500 °C showed neither an endothermic nor an exothermic effect. In both DSC measurements a mass loss after the complete run in the temperature range from room temperature to 500°C of approximately 69 % was observed. The test item has no melting point at atmospheric pressure (1013 hPa) in the temperature range 25 – 500 °C. The test item decomposes prior to melting, starting at a temperature of 215°C

 Observations of the BÜCHI measurement

Temperature / °C	Observations
39	The colour of the test item changed from nearly white to clear and colourless.
135	The colour of the test item changed to white/grey.
215	The colour of the test item changed to light brown.
255	The colour of the test item changed to dark brown.
320	The colour of the test item changed to black.

Up to 410 °C no melting of the test item could be observed.

In the upper (colder) part of the capillary, condensed droplets appeared after decomposition, which can partly explain the mass loss in the DSC measurements.

Conclusions:

The test item has no melting point at atmospheric pressure (1013 hPa) in the temperature range 25 – 500 °C. The test item decomposes prior to melting, starting at a temperature of 215 °C.

Description of key information

Calcium bis(2-ethylhexanoate) has no melting and boiling point.

Additional information

Calcium bis(2-ethylhexanoate) starts to decompose at a temperature of approx. 215 °C. No melting/boiling could be observed.