Registration Dossier

Physical & Chemical properties

Melting point / freezing point

Currently viewing:

Administrative data

Link to relevant study record(s)

Referenceopen allclose all

Endpoint:
melting point/freezing point
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
other:
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
from 2016-04-04 to 2016-04-07
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
1995
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
2008
Deviations:
no
Qualifier:
according to
Guideline:
EPA OPPTS 830.7200 (Melting Point / Melting Range)
Version / remarks:
1998
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
method to determine freezing temperature
Key result
Melting / freezing pt.:
< -29 °C
Atm. press.:
1 013.25 hPa
Decomposition:
no
Sublimation:
no

Table 1 Observations during the freezing point test

Temperature (° C)

Storage period (hours)

State of samples

Replicate 1

Replicate 2

-29

26

liquid

liquid

-29

50

liquid

liquid

Conclusions:
As the test item did not freeze in the course of the preliminary test, the main test was not performed. Based on the preliminary test freezing point of the test item is below -29 °C.
Executive summary:

A study was conducted according to OECD TG 102, Regulation (EC) No 440/2008 method A.1 and EPA OPPTS 830.7200 to determine the freezing point of the test. In order to check the approximate freezing temperature 1 mL of the test item was transferred into 2 mL cryovials. Four replicate tubes were placed in the freezer. After 26 hours storage period two replicate tubes were removed and the physical state of the test item was examined. The remaining tubes were turned over and immediately put back into the freezer for another 24 hours. Then these tubes were checked if the test item could flow through to the cap of the tube. The test item did not freeze in the course of the preliminary test, therefore, no main test was performed and the freezing point of the test item was stated to be below -29 °C.

Description of key information

The freezing point of the test item is below -29 °C.

Key value for chemical safety assessment

Additional information