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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:
14 September 2009
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
Version / remarks:
29 December 1992
Deviations:
no
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling Point)
Version / remarks:
27 July 1995
Deviations:
no
Qualifier:
according to
Guideline:
EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
Version / remarks:
August 1996
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
method according to Siwoloboff
Boiling pt.:
>= 279.9 - <= 283.3 °C
Atm. press.:
99.34 kPa
Key result
Boiling pt.:
>= 282.1 °C
Atm. press.:
101.325 kPa
Remarks on result:
other:
Remarks:
Mean value corrected to atmospheric pressure

The test item is a UVCB substance and due to this a range of boiling is expected. Additionally, during the test the colour of the test item changed from white-yellowish to light brown.

Table 1: Determination of the Boiling Point

Replicate No.  Pressure (kPa)   Temperature (°C)  Temperature (K)  Corrected1
 Temperature (°C)  Temperature (K)
 1  99.34  280.5      
 2  99.34  283.3      
 3  99.34  279.9      
 Mean value (n = 3):  281.2  554.4  282.1  555.2

1 corrected by correlation factor 0.40 K/hPa (y = 0.0008 * 514.7 - 0.009) and barometric pressure

Conclusions:
The test item begins to boil at 282 °C, corrected to a barometric pressure of 101.325 kPa. The test item is a UVCB substance and due to this a range of boiling is expected.
Executive summary:

The boiling point of the test item was investigated using the capillary method according to Siwoloboff and in accordance with EU Method A.2., OECD 103 and US EPA 830.7220 guidelines. The definitive test was conducted at 99.34 kPa and the results were corrected to 101.325 kPa using the Sidney Young equation. The test was performed in triplicate.

The test item begins to boil at 282 °C, corrected to a barometric pressure of 101.325 kPa. The test item is a UVCB substance and due to this a range of boiling is expected. Additionally, during the test the colour of the test item changed from white-yellowish to light brown.

The study is a GLP compliant guideline experimental study and is fully adequate for assessment for this endpoint.

Description of key information

The test item began to boil at 282 °C, corrected to a barometric pressure of 101.325 kPa. The test item is a UVCB substance and due to this a range of boiling is expected. Additionally, during the test the colour of the test item changed from white-yellowish to light brown.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
282 °C

Additional information

The boiling point of the test item was investigated using the capillary method according to Siwoloboff and in accordance with EU Method A.2., OECD 103 and US EPA 830.7220 guidelines (Fieseler 2009a). The study was GLP compliant. The definitive test was conducted at 99.34 kPa and the results were corrected to 101.325 kPa using the Sidney Young equation. The test was performed in triplicate.