Ethoxycarbonylmethyl ethyl phthalate

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

Febr. 19 - Febr. 25, 2019

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

GLP compliance:

no

Type of method:

differential scanning calorimetry

Key result

Boiling pt.:

>= 305.88 - <= 336.62 °C

Decomposition:

yes

Remarks on result:

other: boiling range under decomposition

 Observations

Table3.5‑a     Values Observations

	Mass test substance	Mass crucible (before measurement):	Mass crucible (after measurement):	Observations
First Determination	3.26 mg	48.82 mg	45.88 mg	After the test the crucible was visually unchanged
Second Determination	3.89 mg	49.99 mg	46.19 mg	After the test the crucible was visually unchanged.
Third Determination	3.46 mg	48.83 mg	45.47 mg	After the test the crucible was visually unchanged
Fourth Determination	3.55 mg	49.13 mg	45.58 mg	After the test the crucible was visually unchanged

 Interpretation of the measurements

Four DSC measurements were performed. In the first measurement no complete event could be detected, therefore the temperature range was extended.

In further measurements a broad endothermic peak with lowering baseline was detected.

Based on observations from the pre-test (colour was darker) and the lowering baseline, it can be assumed that the measured event could be the boiling point under decomposition.

This will be given in a range and was evaluated with onset function and event markers to identify the beginning and the end of the boiling process as well.

Presentation of results

The results are presented in the following table.

Table: Values Results

Beginning of boiling process	in °C (event mark)	in K
1 Determination	not completely detected	-
2 Determination	249.62	522.77
3 Determination	249.51	522.66
4 Determination	252.56	525.71
Min	249.51	522.66
Boiling point	in °C (onset)	in K
1 Determination	not completely detected	-
2 Determination	305.88	579.03
3 Determination	321.67	594.82
4 Determination	336.62	609.77
Min	305.88	579.03
Max	336.62	609.77
End of boiling process	in °C (event mark)	in K
1 Determination	not completely detected	-
2 Determination	354.63	627.78
3 Determination	364.79	637.94
4 Determination	370.15	643.30
Max	370.15	643.30

 Final Result

The determination of the boiling point of ethylphthalyl ethyl glycolate was performed via DSC (differential scanning calorimetry).

One broad endothermic event was detected and based on observations in the pre-test it can be identified as boiling under decomposition.

The results of the determination should be stated under these circumstances as followed:

305.88 °C (579.03 K) to 336.62 °C (609.77 K) as boiling range under decomposition

with a boiling process from 249.51 °C (522.66 K) to 370.15 °C (643.30 K).

Conclusions:

The determination of the boiling point of ethylphthalyl ethyl glycolate was performed via DSC (differential scanning calorimetry).
One broad endothermic event was detected and based on observations in the pre-test it can be identified as boiling under decomposition.
The results of the determination should be stated under these circumstances as followed:
305.88 °C (579.03 K) to 336.62 °C (609.77 K) as boiling range under decomposition.

Description of key information

The determination of the boiling point of ethylphthalyl ethyl glycolate was performed via DSC (differential scanning calorimetry).

One broad endothermic event was detected and based on observations in the pre-test it can be identified as boiling under decomposition.

The results of the determination should be stated under these circumstances as followed:

305.88 °C (579.03 K) to 336.62 °C (609.77 K) as boiling range under decomposition.