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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 05 to 06 Septembre 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. The substance is considered to be adequately characterised. Therefore full validation applies.
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
1995
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
2008
Deviations:
no
Principles of method if other than guideline:
Not applicable
GLP compliance:
yes (incl. QA statement)
Remarks:
Date of inspection 13 and 14 October 2014/signed on 8 April 2015
Type of method:
method to determine freezing temperature
Key result
Melting / freezing pt.:
< -20 °C
Decomposition:
no

In a pre-test, the test item was still liquid at - 20 °C and complete solidification occurred only at - 80 °C.

Table 4.2/1: Pre-Test

 

Room Temperature

5 °C

- 20 °C

- 80 °C

liquid

liquid

almost solid

solid

 

After storage for 1 day at – 20 °C, the test item in parts was still liquid and no main test was performed.

Conclusions:
The freezing point of test item was stated as < - 20 °C (< 253.15 K).
Executive summary:

The freezing point of the test item was determined under GLP according to EU Method A.1 and OECD 102.

 

In a pre-test, the test item was 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

The freezing point is stated as: < - 20 °C (< 253.15 K)

Key value for chemical safety assessment

Additional information

A fully reliable experimental study, conducted according to a recognized OECD/EC method and under GLP, is available. It is considered as a key study.

In a pre-test, the test item Cistus organic Oil was still liquid at - 20°C and complete solidification occurred only at - 80 °C. 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.