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Boiling point

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

27 Jan 2020

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

GLP compliance:

yes

Type of method:

differential scanning calorimetry

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Lot/batch number of test material:6252020
- Purity:100%
- Expiration date:September 2021

Key result

Boiling pt.:

266 °C

Atm. press.:

760 mm Hg

Decomposition:

yes

Decomp. temp.:

< 400 °C

Sample Type	Weight of Sample (mg)	Onset Temp (°C)
Definitive, 5 °C/min	1.973	270.34
Definitive, 5 °C/min	3.131	271.94
Definitive, 5 °C/min	3.074	255.36
Definitive, 10 °C/min	2.765	279.25
Definitive, 10 °C/min	3.527	272.11
Definitive, 10 °C/min	3.126	248.59

The average onset point was 266.27 °C (SD of 11.69 °C; %RSD of 4.39%). A series of peaks occurred at higher temperature at irregular temperatures, consistent with decomposition. After the completion of the analyses at 400 °C, the substance was observed to have converted to a black tar. This is typical for substances that undergo decomposition during DSC analysis.

Conclusions:

The boiling point of ERGP-IEM was determined to be 266 °C.

Executive summary:

The boiling point of ERGP-IEM was tested using a differential scanning calorimetry. Samples were heated up to 400 °C. A regular peak appeared at an average onset point of 266 °C, and a series of peaks occurred at irregular points at higher temperatures. After completion of analyses, the substance was observed to have been converted to a black tar consistent with decomposition. The study was performed to OECD guideline 103 and was GLP compliant. Therefore, the study is considered reliable without restrictions.

Reference 2

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

supporting study

Study period:

20 Jan 2020

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

comparable to guideline study with acceptable restrictions

Qualifier:

equivalent or similar to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

GLP compliance:

no

Type of method:

dynamic method

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Lot/batch number of test material: 6252020

Key result

Boiling pt.:

> 202.8 °C

Atm. press.:

760 mm Hg

Test material was observed up to a temperature of 202.8 °C. No stable reflux was reached. The test was stopped due to the upper safe operating temperature limit of the experiment.

Conclusions:

The boiling point of ERGP-IEM was determined to be > 202.8 °C at 760 mmHg.

Executive summary:

The boiling point of ERGP-IEM was tested using the dynamic method. No stable reflux was reached. The test was stopped due to the upper safe operating temperature limit of the experiment. The study method was comparable to OECD guideline 103 but it was not GLP compliant. Therefore, the study is considered reliable with restrictions.

Description of key information

The boiling point of ERGP-IEM was determined to be 266 °C. Decomposition occurred at higher temperatures up to 400 °C.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:

266 °C

Additional information

The boiling point of ERGP-IEM was tested using a differential scanning calorimetry. The study is considered reliable without restrictions. Samples were heated up to 400 °C. After completion of analyses, the substance was observed to have been converted to a black tar consistent with decomposition. The boiling transition occurred at a consistent onset temperature and is possibly due to a lower-boiling component of the UVCB substance. The study was performed to OECD guideline 103 and was GLP compliant.

A second study determined a boiling point of > 202.8 °C at 760 mmHg. The study was performed in comparable to OECD guideline 103 but is not GLP compliant. Therefore, the study is considered reliable with restrictions. No stable reflux was reached. The test was stopped due to the upper safe operating temperature limit of the experiment.