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Diss Factsheets

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:
23 January to 21 March 2007
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
Remarks:
The study was conducted according to an internationally recognised method, and under GLP, but experimental details are missing. The substance is adequately identified, but some data on composition is missing. Therefore validation applies with restrictions.
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Principles of method if other than guideline:
Not applicable
GLP compliance:
yes (incl. QA statement)
Remarks:
24 February 2006
Type of method:
differential scanning calorimetry
Key result
Boiling pt.:
276.3 °C
Atm. press.:
ca. 1 atm

Table 4.2/1: Boiling point – results

Test No.

Start temperature

Heating rate

Onset temperature

1

35 °C

+15 °C/min

276.6 °C

2

250 °C

+15 °C/min

276.4 °C

3

250 °C

+15 °C/min

276.0 °C

Mean ± S.D

276.3 ± 0.3 °C

 

Three successive tests were retained.

Mean onset for boiling occurred at 276.3 °C ± 0.3 °C. The validity criteria were fulfilled: the standard deviation within the three replicate assessments did not exceed 0.5 °C.

Therefore the average value is retained as final result.

Executive summary:

The boiling point of the test substance was determined under GLP according to EU A2 guideline, by Differential Scanning Calorimetry (DSC).

Three runs were performed and the mean final temperature was retained.

The boiling temperature of test substance has been determined to be 276.3 ± 0.3 °C.

Description of key information

Experimental boiling point = 276.3 °C (under nitrogen, atmP not specified).

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
276.3 °C

Additional information

A reliable experimental study, conducted according to a recognized EC method and under GLP, is available. Despite restrictions due to incomplete test item identification and missing experimental details, it is considered as key study, and the result is retained as key data.