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Boiling point

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Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
23 July 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with generally accepted scientific standards and described in sufficient detail
Qualifier:
according to
Guideline:
other: Guideline not listed
Principles of method if other than guideline:
A condenser was used to collect any distillate from the substance, with a thermometer measuring the temperature of the test substance, and a second thermometer to monitor the condensate temperature. The sample was heated through a range of 150 ºC to 270 ºC, with the temperature of the condensate monitored throughout.
GLP compliance:
no
Type of method:
distillation method
Key result
Decomposition:
yes
Decomp. temp.:
ca. 160 °C

The sample was not observed to boil during the test. At approximately 160 ºC, the sample was observed to ‘smoke’ with no evidence of distillation, and no temperature rise at the condenser. The sample was noted to be darker in colour. Heat was continually applied until the sample reached 270 ºC. The sample was not observed to boil, and there was no evidence of distillation. GC analysis of the sample after heating showed evidence of degradation.

Conclusions:
The boiling point of Fatty acids, C12-20 and C12-20-unsatd., 2-ethylhexyl esters cannot be determined as the substance begins to degrade before boiling at ca. 160 oC.
Executive summary:

The sample was not observed to boil during the test. At approximately 160 ºC, the sample was observed to ‘smoke’, with no evidence of distillation, and no temperature rise at the condenser. The sample was noted to be darker in colour. Heat was continually applied until the sample reached 270ºC. The sample was not observed to boil, and there was no evidence of distillation. GC analysis of the sample after heating showed evidence of degradation.

The boiling point of Fatty acids, C12-20 and C12-20-unsatd., 2-ethylhexyl esters cannot be determined as the substance begins to degrade before boiling at ca. 160 oC.

Description of key information

The boiling point of Fatty acids, C12-20 and C12-20-unsatd., 2-ethylhexyl esters cannot be determined as the substance begins to degrade before boiling at ca. 160 oC.

Key value for chemical safety assessment

Additional information