Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Melting point / freezing point

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
from 2017-09-19 to 2017-09-26
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7200 (Melting Point / Melting Range)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
method to determine freezing temperature
Key result
Melting / freezing pt.:
< -29 °C

Table 1. Observations during the freezing point test

Temperature (°C)

Storage period (hours)

State of the samples

Replicate 1

Replicate 2

-28

24

liquid

liquid

-29

48

liquid

liquid

As the test item was not frozen in the course of the preliminary test, the main test was not performed.

Based on the preliminary test, the freezing point of the test item is below -29 °C.

Conclusions:
The freezing point of the test item was determined to be 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 24 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 was determined to be below -29 °C.

Key value for chemical safety assessment

Additional information

A study (reference 4.2-1) 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 24 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.