2-ethylhexanoic acid, zirconium salt

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Guideline 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:

no

Type of method:

differential scanning calorimetry

Atm. press.:

1 013 hPa

Decomposition:

yes

Decomp. temp.:

ca. 210 °C

Melting and Boiling Point

In the temperature range between 370 – 500 °C an endothermic effect was detected, which cannot be allocated to the melting of the test item, but to the decomposition of the test item.

In both DSC measurements amass loss after the complete run in the temperature range from room temperature to 500°C of approximately 56 % was observed, which suggests a decompositionunder liberation of a gaseous compound.

Results of the DSC-measurements

No.	Sample weight / mg	Start of effect / °C	Energy / J/g
PN4021	10.90	380 (endothermic)	140
PN4231	11.24	370 (endothermic)	210

In the BÜCHI measurement the test item has no melting and no boiling point at atmospheric pressure up to 410 °C. At 249 °C the decomposition of the test item started. In the upper (colder) part of the capillary, condensed droplets appeared at a temperature of approximately 300 °C, which can partly explain the mass loss in the DSC measurements.

Observations of the BÜCHI measurement

Temperature / °C	Observations
249	The colour of the test item changed to light brown
326	The colour of the test item changed to brown

Final Results

The test item zirconium 2-ethylhexanoate salt has no melting and no boiling 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 approximately 210 °C.

Conclusions:

The test item zirconium 2-ethylhexanoate salt has no melting and no boiling 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 approximately 210 °C.

Description of key information

Zirconium 2-ethylhexanoate salt has no melting and no boiling 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 approximately 210 °C.