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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Melting point / freezing point

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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 07 to 08 Mars 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
The study was conducted according to an internationally recognised method, and under GLP. Test substance is adequately characterised. Therefore full validation applies.
Reason / purpose for cross-reference:
reference to same 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:
other: BS4633: Method for the Determination of Crystallizing Point
Principles of method if other than guideline:
Not applicable
GLP compliance:
yes (incl. QA statement)
Remarks:
inspected on 13 and 14 October 2014 / signed on 08 April 2015
Type of method:
method to determine freezing temperature
Key result
Melting / freezing pt.:
< -20 °C
Remarks on result:
other: < 253K

Results

Table 4.2/1.-Values Pre-Test

Room Temperature

3.3 °C

-26.1 °C

-80 °C

liquid

liquid

liquid

liquid

After storage for one day at – 80 °C, the test item was still liquid.

Therefore, after consultation of the monitor, no main test was performed in accordance with REACH annex VII.

Conclusions:
No freezing point could be obtained down to -20°C (< 253.15 K).
Executive summary:

The freezing point of the test substance was determined under GLP according to OECD 102 / EU A1 guideline,using a procedure based on BS4633: Method for the Determination of Crystallizing Point.The determination was carried out in duplicate.

During the pre-test, the test item still liquid at -20°C.

According to Regulation (EC) No 1907/2006 (REACH) annex VII, column 2 of section 7.2, the determination of the melting / freezing point does not need to be conducted below a lower limit of - 20 °C. Therefore, no additional test was conducted and the freezing point is stated as < - 20 °C (< 253.15 K).

Description of key information

Freezing point < - 20 °C (< 253.15 K). No further testing required.

Key value for chemical safety assessment

Additional information

A fully reliable experimental study is available and is considered as a key study.

A fully reliable experimental study, conducted according to a recognized OECD/EC method, is available. Therefore, it is considered as a key study. As no crystallisation was observed down to -20°C, the result is expressed as a limit value, and cannot be retained as key data.

According to REACH annex VII, column 2 of section 7.2, the determination of the melting- / freezing point does not need to be conducted below a lower limit of - 20 °C.

Therefore, no additional test was conducted.