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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:
June 27, 2017 - November 02, 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling Point)
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
GLP compliance:
yes (incl. certificate)
Type of method:
differential scanning calorimetry
Specific details on test material used for the study:
- Analytical purity: 100% (UVCB)
- Purity test date: 06 June 2017
- Lot/batch No.: 180517GT41
- Expiration date of the lot/batch: 31 December 2017
- Appearance: Beige pasty solid
- Storage: At room temperature
Decomposition:
ambiguous
Remarks:
Reaction and/or decomposition of the test item was observed during DSC experiments starting at a temperature of 200°C
Decomp. temp.:
200 °C
Remarks on result:
not determinable
Remarks:
Boiling of the test item was not observed below the temperature at which reaction and/or decomposition started

RESULTS

Preliminary test

Starting at 250°C, the weight of the sample decreased significantly. At 270°C, the sample weight had decreased by 25%. After the experiment, a dark brown residue was observed on the lid of the sample container and a brown molten residue remained in the sample container (original colour: beige). The change of the colour indicated reaction and/or decomposition of the test item.

Main study

An endothermic peak was observed between 100°C and 200°C. The endothermic effect was due to evaporation of volatile components (i.e. solvent, impurities). An endothermic peak was observed starting at 200°C. The effect was due to reaction and/or decomposition of the test item. After the experiment, a brown molten residue remained in the sample container (original colour: beige) and a brown residue was observed on the lid of the sample container. The change of the colour indicated reaction and/or decomposition of the test item.

Conclusions:
Reaction and/or decomposition of the test item was observed during DSC experiments starting at a temperature of 200°C. Boiling of the test item was not observed below the temperature at which reaction and/or decomposition started. Based on this, the test item has no boiling temperature.
Executive summary:

The boiling point of the test item was investigated in a GLP-compliant study performed in accordance with EU Method A.2 and OECD Guideline No. 103, using Differential Scanning Calorimetry (DSC). Reaction and/or decomposition of the test item was observed during DSC experiments starting at a temperature of 200°C. Boiling of the test item was not observed below the temperature at which reaction and/or decomposition started. Based on this, the test item has no boiling temperature.

Description of key information

The boiling point of the test item was investigated in a GLP-compliant study performed in accordance with EU Method A.2 and OECD Guideline No. 103, using Differential Scanning Calorimetry (DSC). Reaction and/or decomposition of the test item was observed during DSC experiments starting at a temperature of 200°C. Boiling of the test item was not observed below the temperature at which reaction and/or decomposition started. Based on this, the test item has no boiling temperature.

Key value for chemical safety assessment

Additional information

The boiling point of the test item was investigated in one GLP-compliant study performed in accordance with standard methods, without deviations. The study is considered as reliable (Klimisch 1) and was selected as a key study for the endpoint.