Triisononylamine

Boiling point

Administrative data

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From 23/02/2018 to 24/07/2018

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2018

Report date:

2018

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point/Boiling Range)

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Deviations:

no

Test guideline 3

Qualifier:

according to guideline

Guideline:

other: ISO 11357-1. (2009). Plastics -- Differential Scanning Calorimetry (DSC) – Part 1: General pr inciples. CEN, Bruxelles

Deviations:

no

Test guideline 4

Qualifier:

according to guideline

Guideline:

other: ISO 11357-3. (2013). Plastics -- Differential Scanning Calorimetry (DSC) – Part 3: Determinat ion of temperature and enthalpy of melting and crystallization. CEN, Bruxelles

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

differential scanning calorimetry

Test material

Test material information

Constituent 1

Reference substance name:

Triisononylamine

EC Number:

254-104-8

EC Name:

Triisononylamine

Cas Number:

38725-13-2

Molecular formula:

C27H57N

IUPAC Name:

tris(7-methyloctyl)amine

Test material form:

liquid

Results and discussion

Boiling point

Key result

Boiling pt.:

362.7 °C

Atm. press.:

101.3 kPa

Decomposition:

no

Remarks on result:

other: mean of 362.5 °C for the first determination and 362.9 °C for the second determination

Any other information on results incl. tables

Results of this study are considered valid as the following criteria were met:

-       The crucible was visually checked and no degradation was observed during the study. By opening it, it appeared that there was no test item left in the crucible.

-       The temperature difference obtained between the two determinations is less than 0.5°C up to 326.85°C and less than 2°C up to 1000°C.

The initial boiling point of the test item has been determined to be 360.2 °C at 970.0 hPa for the first determination and 360.6 °C at 970.0 hPa for the second determination.

In case of small pressure deviations the boiling temperature at standard pressure can be calculated following the equation of Sidney-Young. The corrected values following Sidney-Young equation has been determined to be 362.7 °C at 101.3 kPa (mean of 362.5 °C for the first determination and 362.7 °C for the second determination).

Applicant's summary and conclusion

Conclusions:

The corrected values following Sidney-Young equation has been determined to be 362.7 °C at 101.3 kPa (mean of 362.5 °C for the first determination and 362.7 °C for the second determination).

Executive summary:

A study was performed to determine the melting point of the test item. The method used was Differential Scanning Calorimetry (DSC) and the test was according to Regulation EC No. 440/2008 Method A.2 and OECD Test Guideline 103 , "Boiling Point/Boiling Range" and following GLP. In this method, two crucibles were put in the apparatus furnace under inert atmosphere (helium) at atmospheric pressure. One crucible contained the test item, the other was empty and considered as the reference. A specific temperature program was applied. The crucibles were linked to two thermocouples fixed on the TGDSC sample carrier. Heat flow differences between the two crucibles and mass variation were recorded

on a thermogram. A cooling system using liquid nitrogen allowed experiments with low temperatures down to -120°C. Two trials were conducted and corresponding thermograms were obtained, giving the following results:

Trial 1: 360.2°C at 970 hPa; Trial 2: 360.6°C at 970 hPa (Initial boiling point without Sydney-Young correction).

After correction using the Sydney Young equation, the initial boiling point of the substance was determined as 362.7 °C at 101.3 kPa (mean of 362.5 °C for the first determination and 362.9 °C for the second determination).