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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

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