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Physical & Chemical properties

Boiling point

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Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
12.03.2018 - 22.03.2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Guideine study as required by REACH regulation 1907/2006
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling Point)
Version / remarks:
OECD Guideline No. 103 “Boiling Point“, dated 27. Jul. 1995
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
Version / remarks:
EU-Method A.2 dated 30. May 2008, published on 31. May 2017, “Boiling Temperature“
Deviations:
no
Principles of method if other than guideline:
Corresponding SOPs of LAUS GmbH: SOP 118 009 54 “Bestimmung des Siedepunkts –Methode nach Siwoloboff“, edition 7 valid from 15. Sep. 2017
GLP compliance:
yes (incl. certificate)
Type of method:
method according to Siwoloboff
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: Batch no: 06386
- Expiration date of the lot/batch: June 2020
- Purity test date: July 2017
Key result
Decomposition:
yes
Decomp. temp.:
ca. 130 °C
Remarks on result:
not determinable
Remarks:
decomposition of the test item before the boiling point is reached.
Conclusions:
Determination of the boiling point is not possible because of decomposition of the test item before the boiling point is reached.

Beginning decomposition of the item should be stated as 130 °C.
Executive summary:

This study was performed according to OECD 103 resp.EU A.2 in order to determine the boiling point of the test item.

The boiling point study of the test item was performed with the Siwoloboffmethod.

In the pre-tests strong reaction of the test item during heating up was observed, indicated by strong pulsating of the test item ending up in superheating.

For safety reason no further test was performed as strong superheating is a high risk for the involved persons.

Signs for beginning boiling were observed since 121 °C (lowest value); because of the pulsating and the following superheating no boiling chain could be observed. The observed pulsating with following superheating may indicate a dissociate process.

Therefore the determination of the boiling point is not possible because of decomposition of the test item before the boiling point is reached.

Beginning decomposition of the item should be stated as 130 °C under these circumstances.

These values are the result of two independent Pre-tests.

 According to the requirements following REACH, Annex VII, 7.3 “Boiling Point” the third point, the boiling point study has not to be conducted for substances which decompose before boiling. Therefore, the result of the study is considered valid.


Description of key information

Boiling Point/ Decomposition

Key value for chemical safety assessment

Additional information

Determination of the boiling point is not possible because of decomposition of the test item before the boiling point is reached.

Beginning decomposition of the item should be stated as 130 °C under these circumstances.