1,4-dimethylpiperazine

Melting point / freezing point

Link to relevant study record(s)

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2013-10-18

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

method to determine freezing temperature

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Lot/batch number of test material: 1903-3/2012
- Purity: not indicated
- Appearance: clear liquid

Key result

Melting / freezing pt.:

-0.7 °C

Remarks on result:

other: Atmospheric pressure not reported; ambient conditions are anticipated.

The first measurement revealed a freezing temperature of -0.8°C and the second measurement revealed a freezing temperature of -0.6°C.

The result is the mean of two runs

Conclusions:

The freezing temperature of the substance was concluded to be -0.7°C under ambient conditions.

Description of key information

The freezing point of the test substance under ambient conditions was determined to -0.7°C in a GLP study according to test method EC A.1 (Younis, 2013).

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

-0.7 °C