Salts of phosphoric acid, 2-ethylhexyl esters with C16-18 (even numbered) and C18-unsaturated-alkylamines

Boiling point

Administrative data

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

19 Jun 2019 - 02 Aug 2019

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Cross-reference

Reason / purpose for cross-reference:

reference to same study

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

19 Jun 2019 - 02 Aug 2019

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Version / remarks:

2016

Deviations:

no

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Version / remarks:

1995

Deviations:

no

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.7200 (Melting Point / Melting Range)

Version / remarks:

1998

Deviations:

no

Principles of method if other than guideline:

An additional experiment was performed in which the consistency of the substance was determined by visual observation after samples had been placed at approx. -20°C and -80°C. The additional experiment is not a guideline study but was described in sufficient detail in the study report.

GLP compliance:

yes

Type of method:

other: 'differential scanning calorimetry' and 'storage in freezer'

Key result

Melting / freezing pt.:

< -83.3 °C

Decomposition:

yes

Decomp. temp.:

ca. 200 °C

TGA EXPERIMENT (PRELIMINARY TEST)

Decrease of weight from 150°C upwards: 25% at 288°C and 70% at 374°C.

After the experiment, a light yellow soapy residue remained in the sample container and a soapy residue was observed on the lid of the sample container. The change of the colour indicated reaction and/or decomposition of the test item.

 

DSC EXPERIMENT 1

During cooling, no effects were observed. During heating an endothermic effect was observed between 0°C and 100°C followed by an endothermic effect starting at 200°C. The first endothermic effect was most likely obtained due to the evaporations of impurities. The second endothermic effect was probably obtained due to reaction and/or decomposition of the test item. After the experiment, a light yellow molten residue remained in the sample container. The change of the colour indicated reaction and/or decomposition of the test item.

DSC EXPERIMENT 2

To investigate the endothermic effect between 0°C and 100°C, Experiment 2 was stopped directly after this effect. After the experiment, the residue remained in the sample container was unchanged by colour. Based on this visual observation, it was concluded that the effect was probably obtained due to the evaporation of volatile components.

STORAGE IN FREEZER

After storage in a freezer (-20.8 ± 1.7°C) for 41 hours, the test item was observed to be a viscous liquid.

After storage in a freezer (-83.3 ± 1.9°C) for 41 hours, the test item was observed to be a very viscous liquid.

Conclusions:

The substance has no melting/freezing point down to -83.3°C.

Executive summary:

Differential Scanning Calorimetry was performed. The experiments were in accordance with EC A.1, OECD 102 and OPPTS 830.7200 (melting temperature) and on EC A.2, OECD TG 103 and OPPTS 830.722 (boiling temperature). GLP-study. There was no DSC effect due to melting/freezing of the liquid substance between 25°C and -90°C. An additional non-guideline experiment 'Storage in freezer' was therefore performed in which samples were placed at approximately -20°C and -80°C. As freezing was not observed in each of the experiments, it was concluded that the substance has no melting/freezing point at temperatures down to -83.3°C.

Boiling of the substance was not observed below the temperature at which reaction and/or decomposition started (i.e. at 200°C).

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2020

Report date:

2020

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Version / remarks:

2016

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

Version / remarks:

1995

Deviations:

no

Test guideline 3

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.7220 (Boiling Point / Boiling Range)

Version / remarks:

1996

Deviations:

no

GLP compliance:

yes

Type of method:

differential scanning calorimetry

Test material

Test material information

Constituent 1

Reference substance name:

Salts of phosphoric acid, 2-ethylhexyl esters with C16-18 (even numbered) and C18-unsaturated-alkylamines

EC Number:

949-859-1

Molecular formula:

not applicable

IUPAC Name:

Salts of phosphoric acid, 2-ethylhexyl esters with C16-18 (even numbered) and C18-unsaturated-alkylamines

Test material form:

liquid

Details on test material:

- Appearance: Clear yellow liquid
- Storage condition: At room temperature

Results and discussion

Boiling point

Key result

Decomposition:

yes

Decomp. temp.:

ca. 200 °C

Remarks on result:

other: no boiling up to decomposition

Any other information on results incl. tables

see IUCLID 4.2 melting point

Applicant's summary and conclusion

Conclusions:

Boiling of the substance was not observed below the temperature at which reaction and/or decomposition started (i.e. at 200°C).

Executive summary:

see IUCLID 4.2 melting point