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Boiling point

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Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Qualifier:
according to guideline
Guideline:
other: DIN 53171
GLP compliance:
no
Type of method:
distillation method
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Name of test material (as cited in study report): 2,2',2''-nitrilotriethanol citrate
- Physical state: Liquid
- Batch nr: SEALS 2014-63-2-001
Boiling pt.:
115 °C
Atm. press.:
ca. 1 013 hPa
Decomposition:
yes

No information on atmospheric pressure is provided; however, it is presumed that it corresponded to a standard pressure of 1013 hPa.

Based on expert judgement, it is unlikely that the boiling point of the test substance as such is 115 °C. As the test material included a portion of water, the formation of bubbles that are detected visually are likely from the water content. A boiling point of 115 °C is also not in line with the boiling point results of the two main constituents TEA (CAS 102-71-6), which has a boiling point of 336.1 °C and citrate (CAS 77-92-9), which decomposes before boiling. It is therefore expected that the test substance decomposes before boiling.

Description of key information

The boiling point was determined to be 115°C at 1013 hPa in a test performed according to EU method A.2.

Based on expert judgement, it is unlikely that the boiling point of the test substance as such is 115 °C. As the test material included a portion of water, the formation of bubbles that are detected visually are likely from the water content. A boiling point of 115 °C is also not in line with the boiling point results of the two main constituents TEA (CAS 102-71-6), which has a boiling point of 336.1 °C and citrate (CAS 77-92-9), which decomposes before boiling. It is therefore expected that the test substance decomposes before boiling.

Key value for chemical safety assessment

Additional information