Tribenzylamine

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:

2020-05-11

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Version / remarks:

2008

Deviations:

no

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

Version / remarks:

1995

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

differential scanning calorimetry

Key result

Boiling pt.:

>= 351.6 - <= 355.9 °C

Atm. press.:

1 013 hPa

Decomposition:

no

In the temperature range of 90 to 100 °C a first endothermic effect could be observed. A second endothermic effect was detected in the temperature range of 320 to 390 °C. No further thermic effects could be observed up to the maximum temperature of 500 °C.

Results of the DSC-measurements

No.	Sample weight / mg	Onset of Effect / °C	Range of effect / °C	Weight loss / mg	Atmospheric pressure / hPa
PN19667	10.05	92.70 354.82	90 – 100 (endo) 320 – 390 (endo)	10.05	991.9
PN19668	10.23	92.90 350.52	90 – 100 (endo) 320 – 390 (endo)	10.23	991.9

The test item showed a second endothermic signal in the temperature range of 320 – 390 °C, which could be assigned to the boiling of the test item.

For the correction of the boiling temperature to standard pressure the test item was assigned to chemical group 3 (e.g. Amines). A correction value φ = 5.55 was used for the temperature range from 350 °C to 360 °C.

The lowest measured onset temperature is corrected to the standard pressure to be 351.56 °C and the highest onset temperature to be 355.86 °C. As the corrected onset temperatures in both tests deviate by more than 0.5 K from their mean value of 353.71 °C, the test item has a boiling range from 351.6 °C to 355.9 °C.

No further thermal effects were observed up to the test end temperature of 500 °C

Conclusions:

The corrected boiling range of the test item was determined to be from 351.6 °C to 355.9 °C at 1013 hPa.

Executive summary:

The boiling point of the test item was determined by Differential Scanning Calorimetry according to Regulation (EC) No 440/2008 Method A.2. and OECD Test Guideline 103 (1995). In the DSC measurement the first endothermic effect could be observed in the temperature range of 90 – 100 °C, which was followed by second endothermic effect in the temperature range of 320 – 390 °C. The second endothermic effect is assigned to the boiling point. The boiling point was corrected to standard pressure. The lowest measured onset temperature is corrected to the standard pressure to be 351.56 °C and the highest onset temperature to be 355.86 °C. As the corrected onset temperatures in both tests deviate by more than 0.5 K from their mean value of 353.71 °C, the test item has a boiling range from 351.6 °C to 355.9 °C.

Reference 2

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

data from handbook or collection of data

Principles of method if other than guideline:

The substance’s property is described in a reliable source. No details on the method used for determination are provided.

GLP compliance:

not specified

Type of method:

other: not specified

Key result

Boiling pt.:

385 °C

Remarks on result:

other: No further information provided

Conclusions:

The boiling point was 385 °C as described in a reliable data collection.

Description of key information

The corrected boiling range of the test item was determined to be from 351.6 °C to 355.9 °C at 1013 hPa (reference 4.3-2).

Additional information

The boiling point of the test item was determined by Differential Scanning Calorimetry according to Regulation (EC) No 440/2008 Method A.2. and OECD Test Guideline 103 (1995). In the DSC measurement the first endothermic effect could be observed in the temperature range of 90 – 100 °C, which was followed by second endothermic effect in the temperature range of 320 – 390 °C. The second endothermic effect is assigned to the boiling point. The boiling point was corrected to standard pressure. The lowest measured onset temperature is corrected to the standard pressure to be 351.56 °C and the highest onset temperature to be 355.86 °C. As the corrected onset temperatures in both tests deviate by more than 0.5 K from their mean value of 353.71 °C, the test item has a boiling range from 351.6 °C to 355.9 °C.

As supporting information the boiling point was described as 385 °C in a reliable data collection (reference 4.3-1).