Tributylethylammonium ethyl sulphate

Boiling point

Administrative data

Endpoint:

boiling point

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the substance is a solid which decomposes before boiling

Cross-reference

Reason / purpose for cross-reference:

data waiving: supporting information

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

from 31 January 2017 to 23 February 2017

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:

2008

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

GLP compliance:

yes

Type of method:

differential scanning calorimetry

Key result

Melting / freezing pt.:

61.6 °C

Decomposition:

yes

Decomp. temp.:

> 225 °C

DSC EXPERIMENT 1

An endothermic peak between 25°C and 75°C was observed. The extrapolated onset temperature of the peak was not be determined since it was observed within 2 minutes from the start of the experiment. From 225°C, an endothermic effect was observed. The effect was due to reaction and/or decomposition of the test item. After the experiment, an orange molten residue remained in the sample container.

DSC EXPERIMENT 2

The extrapolated onset temperature of the endothermic melting peak was determined to be 61.555°C. After the experiment, a white molten residue remained in the sample container.

DSC EXPERIMENT 3

Experiment 3 was performed to determine the duplicate melting temperature of the test item. Similar results as with Experiment 2 were obtained. The extrapolated onset of the melting peak was 61.551°C. After the experiment, a white molten residue remained in the sample container.

DATA HANDLING

The mean of Experiment 2 (61.555°C) and Experiment 3 (61.551°C) was reported as the melting point of the substance.

 

Conclusions:

The melting temperature of the substance was determined to be 61.6°C.

Executive summary:

Differential Scanning Calorimetry (DSC) experiments were performed in a GLP study according to EC A.1, OECD 102 and OPPTS 830.7200. From duplicate experiments the melting temperature of the substance was determined to be 61.6°C. Reaction and/or decomposition of the substance started above 225°C.