Tagetes minuta, ext.

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:

09 May 2017 - 10 May 2017

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. Test substance is adequately characterised. Therefore full validation applies.

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to other study

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 relevant

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.:

< -80 °C

Atm. press.:

1 atm

Decomposition:

no

Pre-Test:

After evaluation the following values were recorded:

Room Temperature	3.7°C	-22.0°C	-80°C
Yellow coloured liquid	No changes	No changes	High viscous but still a liquid

As 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 main test was performed.

Conclusions:

In a pre-test, the test item was still liquid at - 80 °C. According to REACH ( Regulation (EC) No 1907/2006 of the EUROPEAN PARLIAMENT AND OF THE
COUNCIL; 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, the freezing point is stated as:
< - 80 °C (< 193.15 K).
No observations were made which might cause doubts on the validity of the study outcome.
Therefore, the result of the study is considered valid.

Executive summary:

This study was performed in order to determine the freezing point or the melting range of the test item according OECD 102 resp. EU A.1.

In a pre-test, the test item was still liquid at – 80°C.

According to Regulation (EC) No 1907/2008 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: < - 80 °C (< 193.15 K).

Description of key information

In a pre-test, the test item was still liquid at – 80°C. According to Regulation (EC) No 1907/2008 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:

< - 80 °C (< 193.15 K).

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

-80 °C

Additional information

A fully reliable experimental study, conducted according to OECD 102/EU A1 guideline is available. It is considered as a key study, and the result is retained as key data.