Bis(4-(1,1,3,3-tetramethylbutyl)phenyl) ether

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

April 16 - April 20, 2020

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.:

407.19 °C

Atm. press.:

ca. 101.325 kPa

Decomposition:

yes

Remarks on result:

other: boiling under decomposition

 Observations

Table: Values Observations

	Mass test substance	Mass crucible (before measurement):	Mass crucible (after measurement):	Observations
First Determination	2.96 mg	47.84 mg	45.01 mg	After the test the crucible was visually unchanged
Second Determination	2.92 mg	47.82 mg	44.96 mg	After the test the crucible was visually unchanged.

 Interpretation of the measurements

Two DSC measurements were performed. In both measurements an endothermic event was detected with a subsequently lowered baseline.

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

This was evaluated with onset function and the mean value is given as the boiling point under decomposition.

Presentation of results

The results are presented in the following table.

Table: Values Results

Boiling under decomposition	in °C (onset)	in K
1 Determination	407.03	680.18
2 Determination	407.34	680.49
Mean	407.19	680.34
SD	0.22	0.22

Assessment

The DSC measurement of indium after calibration met the validity criteria. Therefore, the result of the study is considered valid.

 Final Result

The determination of the boiling point of bis(4-(1,1,3,3-tetramethylbutyl)phenyl)ether was performed via DSC (differential scanning calorimetry).

One endothermic event with lowered baseline was detected.

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

407.19 °C (680.34 K) as boiling under decomposition.

Conclusions:

The determination of the boiling point of bis(4-(1,1,3,3-tetramethylbutyl)phenyl)ether was performed via DSC (differential scanning calorimetry).
One endothermic event with lowered baseline was detected. The results of the determination should be stated under these circumstances as followed:
407.19 °C (680.34 K) at 101.325 kPa as boiling under decomposition.

Description of key information

The determination of the boiling point of bis(4-(1,1,3,3-tetramethylbutyl)phenyl)ether was performed via DSC (differential scanning calorimetry). One endothermic event with lowered baseline was detected. The results of the determination should be stated under these circumstances as followed: 407.19 °C (680.34 K) as boiling under decomposition.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:

407.19 °C

Additional information

boiling under decomposition