Amines, N-tallow alkyltrimethylenedi-, C4-18-alkyl phosphates

Melting point / freezing point

Administrative data

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2019

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Justification for type of information:

Updated information. Study now available and provided ahead of extended submission date of 31/05/2019.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2018

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Deviations:

no

Test guideline 3

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.7200 (Melting Point / Melting Range)

Deviations:

no

GLP compliance:

yes

Type of method:

differential scanning calorimetry

Test material

Test material information

Constituent 1

Reference substance name:

Amines, N-tallow alkyltrimethylenedi-, C4-18-alkyl phosphates

EC Number:

271-672-2

EC Name:

Amines, N-tallow alkyltrimethylenedi-, C4-18-alkyl phosphates

Cas Number:

68603-74-7

Molecular formula:

The substance is a UVCB so there is no molecular formula

IUPAC Name:

Amines, N-tallow alkyltrimethylenedi-, C4-18-alkyl phosphates

Test material form:

solid

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Expiration date of the lot/batch: 30 April 2019
- Purity test date: Not specified

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: At room temperature
- Stability under test conditions: Stable at a maximum of 50°C

Results and discussion

Melting / freezing point

Key result

Melting / freezing pt.:

50.2 °C

Atm. press.:

101.325 kPa

Decomposition:

no

Any other information on results incl. tables

Preliminary Test

Starting at 275°C, the weight of the sample decreased significantly. At 309°C, the sample weight had decreased by 25%. After the experiment, an orange molten residue remained in the sample container (original colour: Amber greasy solid). The change of the colour indicated reaction and/or decomposition of the test item.

Main Test

In Experiment 1, a small exothermic effect (crystallisation) and a glass transition were observed during cooling. During heating a glass transition effect was observed between -90°C and -50°C followed by several endothermic effects between -50°C and 150°C. The temperature at the maximum of the last endothermic effect between -50°C and 150°C was 49.523°C. 

Experiment 2: In order to investigate the endothermic effects, experiment 2 was stopped directly after the last melting effect.  The temperature at the maximum of the last endothermic effect between -50°C and 150°C was 50.013°C. After the experiment, a colourless molten residue remained in the sample container.

Experiment 3: In order to investigate the endothermic effects starting at 200°C, a higher heating end temperature was used.  The temperature at the maximum of the last endothermic effect between -50°C and 150°C was 51.085°C

Experiment 4: In order to investigate the endothermic effects between -40°C and 20°C, experiment 4 was stopped directly after the endothermic effect. After the experiment, the test item residue looked the same as at start of the experiment. Because during cooling an exothermic effect was observed which probably derives from crystallisation and because at the end of the test, the test item had not molten completely, it was concluded that the endothermic effect between-40°C and 20°C was due to melting of one or more compounds present in the test item.

As complete melting was observed after the endothermic effect at approximately 50°C, the melting temperature was determined as the mean melting temperature of Experiment 1 (49.523°C), Experiment 2 (50.013°C) and Experiment 3 (51.085°C).

 

 

Applicant's summary and conclusion

Conclusions:

The melting temperature of Amines, N-tallow alkyltrimethylenedi-, C4-18-alkyl phosphates was determined by differential scanning calorimetry (DSC). The melting temperature of the test item was 50.2°C (323.4K).

Executive summary:

Introduction

The study was conducted to determine the melting temperatures of the test substance. The method used was designed to meet the requirements of the following guidelines:

 

EC Guideline A.1. Melting/Freezing Temperature. March 04, 2016

OECD Guideline 102. Melting Point / Melting Range

EPA Product Properties Test Guideline OPPTS 830.7200: Melting Point/Melting Range. March 1998

 

Method

The melting point was determined by differential scanning calorimetry (DSC). A Preliminary test followed by a main test was conducted. The melting point was determined as the mean of three experiments.

 

Results

The melting temperature was determined as the mean melting temperature of Experiment 1 (49.523°C), Experiment 2 (50.013°C) and Experiment 3 (51.085°C).

 

 

Conclusion

The melting temperature of Amines, N-tallow alkyltrimethylenedi-, C4-18-alkyl phosphates was determined by differential scanning calorimetry (DSC). The melting temperature of the test item was 50.2°C (323.4K).