Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019
Report date:
2019

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
GLP compliance:
yes (incl. QA statement)
Type of method:
differential scanning calorimetry

Test material

Constituent 1
Chemical structure
Reference substance name:
N-benzylethylenediamine
EC Number:
223-984-5
EC Name:
N-benzylethylenediamine
Cas Number:
4152-09-4
Molecular formula:
C9H14N2
IUPAC Name:
N-benzylethane-1,2-diamine
Test material form:
liquid

Results and discussion

Melting / freezing pointopen allclose all
Key result
Atm. press.:
1 013 hPa
Remarks on result:
not determinable
Remarks:
No melting temperature could be detected between -135 °C and 50 °C, even with addition of aluminum oxide powder as crystallization aid and two annealing phases at -80 °C and -50 °C
Key result
Atm. press.:
1 013 hPa
Remarks on result:
other: Glass transition was found at -93 °C

Any other information on results incl. tables

Results in detail

Melting temperature

No melting temperature could be detected between -135 °C and 50 °C, even with addition of aluminum oxide powder as crystallization aid and two annealing phases at -80 °C and -50 °C (determination Test 2).

A glass transition was found at -93 °C (Test 1 and determination A).

Determination

Glass transition temperature [°C]

Test 1

-93.0

A

-93.0

Mean value

-93

The glass transition was measured with a heating rate of 20 K/min according to DIN EN ISO 11357-2.

Observed thermal processes

In order to survey the thermal behavior of the test item a preliminary TG/DSC-Test (non-GLP) was run up to 600 °C.

A decreasing TG-signal starting at about 30 °C with a total weight loss at 220 °C showed the vaporization of the test item.

Applicant's summary and conclusion

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