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Melting point / freezing point

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Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2017-06-27 to 2018-03-15
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose for cross-reference:
reference to same study
Qualifier:
according to guideline
Guideline:
other: OECD Guideline 103 Boiling point
Version / remarks:
1995-07-27
GLP compliance:
yes (incl. QA statement)
Type of method:
differential scanning calorimetry
Key result
Melting / freezing pt.:
>= 70 - <= 89 °C

Results of the DSC-measurements:

DSC run No.

Sample weight / mg

Onset of Effect / °C

Range of effect / °C

Weight loss / mg

Atmospheric pressure / hPa

PN13662

12.59

70.15 / 86.10

391.73

50 – 100 (endo)

350 – 470 (endo)

12.54

997.0

PN13824

10.37

69.32 / 85.31

389.07

50 – 100 (endo)

350 – 470 (endo)

10.44

998.9

Conclusions:
The melting point of N,N'-[(methylimino)bis(trimethylene)]bis(stearamide) was determined to be in a range of 70 to 89 °C, using differential scanning calorimetry.
Executive summary:

A study on differential scanning calorimetry according to OECD Guideline 103 (27 July 1995) was conducted with N,N′-[(methylimino)bis-(trimethlene)]bis-(stearamide).

The heating phase covered a range from room temperature to 500 °C. During the heating phase endothermic effects were observed in two temperature ranges. The first endothermic effect can be assigned to the melting of the test item. The test item showed a second endothermic signal in the temperature range of approx. 350 -470 °C.

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

Melting of N,N′-[(methylimino)bis-(trimethlene)]bis-(stearamide) was observed in a range of 70 to 89 °C.

Description of key information

The melting point of N,N'-[(methylimino)bis(trimethylene)]bis(stearamide) was determined to be in a range of 70 to 89 °C.°C, using differential scanning calorimetry.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
89 °C

Additional information

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