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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:
2012-01-18
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
no
GLP compliance:
yes
Type of method:
method according to Siwoloboff
Key result
Atm. press.:
102.3 kPa
Decomposition:
yes
Decomp. temp.:
200 °C

Sample started to discolour to brown at 200°C and bubbling was observed at approximately 205°C. Due to the sample darkening to black it was impossible to see any sample rising up the capillary tube. It was suspected the sample began to decompose as it discoloured to black at 208°C.

Conclusions:
Decomposition of the sample NMMO started at 200°C, under ambient conditions.
Executive summary:

The boiling point of the test item was determined according to EU Method A.2. by applying the Siwoloboff method. Decomposition of the test item under ambient conditions started at 200°C before boiling was observed.

Description of key information

Decomposition of the sample NMMO occurred at 200°C in a GLP study according to EU Method A.2 (Boiling temperature), Siwoloboff (Younis, 2012).

Key value for chemical safety assessment

Additional information

Value used for CSA: No boiling point was determined.

Sample started to discolour to brown at 200°C and bubbling was observed at approximately 205°C. Due to the sample darkening to black it was impossible to see any sample rising up the capillary tube. It was suspected the sample began to decompose as it discoloured to black at 208°C