Fatty acids, C6-19-branched, copper(2+) salts

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2018-04-09 to 2018-09-18

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

Version / remarks:

1995

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Version / remarks:

2008

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Remarks:

signed 2017-02-28

Type of method:

differential scanning calorimetry

Specific details on test material used for the study:

Storage Conditions: Room temperature, sealed container

Atm. press.:

>= 1 002 - <= 1 012.6 hPa

Decomposition:

yes

Decomp. temp.:

>= 190 °C

Melting and Boiling Point (DSC and Measurement in Test Glass)

In both DSC runs endothermic effects were observed in the temperature ranges from -30 °C to 0 °C, from 40 °C to 120 °C, from 140 °C to 250 °C, from 250 °C to 320 °C and from 430 °C to 600 °C. In both DSC runs no exothermic effect was detected.

Results of the DSC-measurements

No.	Sample weight [mg]	Onset of Effect [°C]	Range of effect [°C]	Weight loss	Atmospheric pressure [hPa]
PN15493	7.89	-33.93 32.03 208.09 282.78 453.91	-30 – 0 (endo) 40 – 110 (endo) 140 – 250 (endo) 250 – 320 (endo) 430 – 600 (endo)	6.92 mg 88 %	1002.0
PN15495	16.18	-32.48 56.89 205.54 275.59 493.32	-30 – 0 (endo) 60 – 120 (endo) 180 – 240 (endo) 260 – 320 (endo) 460 – 590 (endo)	14.21 mg 88 %	1012.6

It is not possible to assign any of the observed endothermic effects definitely to melting or boiling of the test item.

For verification of the DSC results the test item was additionally tested in a test glass. Liquefaction of the test item was observed at approx. -10 °C. At approx. 200 °C small bubbles started to form and to rise in the test glass. The temperature of the test glass was not increased further.

Conclusions:

Melting and Boiling Point:
In the differential scanning calorimetry measurements according to Regulation EC No. 440/2008 Methods A.1./A.2. and OECD Test Guidelines 102/103 (1995) at atmospheric pressure (1002.0 - 1012.6 hPa) endothermic effects were observed in the temperature ranges from -30 °C to 0 °C, from 40 °C to 120 °C, from 140 °C to 250 °C, from 250 °C to 320 °C and from 430 °C to 600 °C.
The visual observation of the test item being heated in a test glass gave that the test item liquefied at approx. -10 °C and that small bubbles started to form and to rise in the test glass at approx. 200 °C.
Based on the results and observations, it may be assumed that the test item has a melting range between -30 °C and 0 °C and decomposes before boiling at temperatures ≥ 190 °C.

Description of key information

The test item decomposes before boiling at temperature ≥ 190 °C.

Additional information

Melting and Boiling Point

In the differential scanning calorimetry measurements according to Regulation EC No. 440/2008 Methods A.1./A.2. and OECD Test Guidelines 102/103 (1995) at atmospheric pressure (1002.0 - 1012.6 hPa) endothermic effects were observed in the temperature ranges from -30 °C to 0 °C, from 40 °C to 120 °C, from 140 °C to 250 °C, from 250 °C to 320 °C and from 430 °C to 600 °C.

The visual observation of the test item being heated in a test glass gave that the test item liquefied at approx. -10 °C and that small bubbles started to form and to rise in the test glass at approx. 200 °C.

Based on the results and observations, it may be assumed that the test item has a melting range between -30 °C and 0 °C and decomposes before boiling at temperatures ≥ 190 °C.