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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:
Start date of the experimental work: 22 August 2014 and Completion date of the experimental work: 09 October 2014.
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
differential scanning calorimetry
Key result
Boiling pt.:
185 °C
Decomposition:
no
Remarks on result:
other: mean of 3 runs

Test A

The test was conducted in an open aluminium crucible. The sample was observed to undergo an endothermic event from 185.7C which and a heat of melting of 52.6 J.g-1. On completion of testing a blackened sample with black residue remained.

Test B

The test was conducted in an open aluminium crucible. The sample was observed to undergo an endothermic event from 182.6C which and a heat of melting of 51.9 J.g-1. On completion of testing a blackened sample with black residue remained.

Test C

The test was conducted in an open aluminium crucible. The sample was observed to undergo an endothermic event from 185.5C which and a heat of melting of 52.2 J.g-1. On completion of testing a blackened sample with black residue remained.

Result : 185°C (mean of 3 runs)

Conclusions:
The boiling point of the test item was found to be: 185°C (mean of 3 runs)

Description of key information

 The boiling point of the test item was found to be: 185°C (mean of 3 runs). However it can be concluded that all MDI substances decompose at higher temperature and hence no true boiling point can be
determined. 

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
185 °C

Additional information

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