3,3'-ethylenedioxybis(propylamine)

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2012-02-22 - 2012-03-15

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

GLP compliance:

yes (incl. QA statement)

Type of method:

other: SIWOLOBOFF METHOD (Experiment 1) and Differential Scanning Calorimetry DSC (Experiment 2)

Specific details on test material used for the study:

- Batch n°: PFW090017
- Date CoA: 27.10.2011
- Water content: 0.12%
- Test Substance Name Jeffamine EDR-176
- Chemical Name 3,3-etheylenedioxybis(propylamine)
- CAS number 2997-01-5
- Batch Number PFW090017
- Description Colourless liquid
- Molecular Formula C8H20N2O2
- Molecular Weight 176 g.mol-1

Key result

Boiling pt.:

242.2 °C

Atm. press.:

102.6 kPa

Decomposition:

yes

Decomp. temp.:

170 °C

Remarks on result:

other: Results with SIWOLOBOFF METHOD

Remarks:

During the test multiple events were observed at temperatures around 224 - 243°C (bubbles and discolouration). The analyst suspected decomposition to boiling and as a result a DSC analysis was requested to understand the visual observation.The DSC data confirmed multiple events at the temperature range mentioned above. The analyst therefore concluded the test material decomposes with boiling.

Key result

Decomposition:

yes

Decomp. temp.:

169.9 °C

Remarks on result:

other: Result with DSC method ( Test A)

Remarks:

The test results indicate that the material decomposes before it boils.

Full test results (SIWOLOBOFF METHOD) Experiment 1.

Run Number	Mass of sample used (g)	Boiling temperature (°C)
1	0.03968	242.2
2	N/A	N/A
Mean Boiling Temperature (°C)	242.2

Result: Decomposition (170°C)

Pressure at which measurements were taken (kPa) : 102.6

Comments

During the boiling point determination multiple events were observed at temperatures around 224 - 243°C (bubbles and discolouration). The analyst suspected decomposition to boiling and as a result a DSC analysis was requested to understand the visual observation. The DSC data confirmed multiple events at the temperature range mentioned above. The analyst therefore concluded the test material decomposes with boiling.

Test results (DSC method - Test A) Experiment 2.

Test A

The test was conducted in an open aluminium crucible. The sample was observed to undergo an exothermic event (decomposition) from 169.9°C which had a heat of decomposition of -1081.9 J.g-1. No further significant energetic events were noted up to 500°C.

The test results indicate that the material decomposes before it boils.

Conclusions:

The following boiling point result was obtained: Decomposition (170°C) (experiment 1)
Decomposition at 169.9°C (experiment 2)

Executive summary:

SIWOLOBOFF method (Experiment 1): During the test multiple events were observed at temperatures around 224 - 243°C (bubbles and discolouration). The analyst suspected decomposition to boiling and as a result a DSC analysis was requested to understand the visual observation.The DSC data confirmed multiple events at the temperature range mentioned above. The analyst therefore concluded the test material decomposes with boiling.

DCS METHOD (Experiment 2): The test results indicate that the material decomposes before it boils.

In conclusion, no boilig point is determined as in both method the test item decomposes before to boil.

Description of key information

A K1, GLP-compliant study was performed according to EU Method A.2. The boiling point was determined using the SIWOLOBOFF and DCS method and in both cases the conclusion was that no boiling point can be determined as the test item decomposes before it boils (Younis, 2012).