Registration Dossier

Administrative data

Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
16 December 2011 - 4 April 2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: According to OECD Guideline 103

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2012
Report Date:
2012

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Type of method:
differential scanning calorimetry

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Boiling point
Boiling pt.:
347 °C
Atm. press.:
973 hPa
Decomposition:
yes
Remarks on result:
other: Decomposes on boiling

Any other information on results incl. tables

There is an exothermic peak in the 325 to 355 °C region with mean onset 347 °C (see 1 below). This exothermic peak is followed immediately by an endothermic one, indicating an overlap of decomposition and boiling. To confirm this interpretation, the boiling point was estimated with Syracuse software (see 2 below). The predicted boiling point, 346 °C, agrees well with the onset of the exothermic peak.

1) Boiling point test results

Measurement

Onset (°C)

Atmospheric pressure (hPa)

#1

347.3

973

#2

346.6

973

2) Estimated boiling point (Syracuse)

N,N-dimethyl-octadecaan-1-amine:       345.7

The mean onset (rounded to 347 °C) is selected as giving the best value of the boiling point.

Applicant's summary and conclusion

Conclusions:
The boiling point of the test item is 347 °C at 973 hPa.
Executive summary:

The boiling point of the test substance was determined according to the OECD Guideline 103 using differential scanning calorimetry. At 973 hPa, the boiling point is 347 °C.