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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:
June 23, 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
comparable to guideline study
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
method according to Siwoloboff
Key result
Boiling pt.:
201.1 °C
Atm. press.:
1 001 hPa
Remarks on result:
other: Average value ± standard deviation: 201.1 ± 0.1 ºC.

Table 1. The observed values of the boiling point

Sample

Boiling temperature, °C

The measured atmospheric pressure, hPa

Visually

1

201.0

1001

2

201.2

3

201.0

Average value ± standard deviation, °C

201.1 ± 0.1

The three series of measurements were performed in the temperature range 100 -400ºC. Below the temperature of 190ºC, the temperature gradient of 3°C/min was used. Above 190ºC the used gradient was 1°C/min (at about 10.0°C below the expected boiling temperature).

Conclusions:
The boiling point of D-alpha fenchol was observed at temperature of 201.1 ± 0.1°C.
Executive summary:

The boiling point of the test substance was determined according to the OECD 103 Guideline and EU A.2 Method (Method according to Siwoloboff). The study started at a temperature gradient of 3ºC/min up to 190ºC, about 10.0˚C below the expected boiling temperature, when the heating rate was reduced to 1ºC/min. The observed value of the boiling point of D-alpha fenchol was determined to be 201.1 ± 0.1ºC under atmospheric pressure of 1001 hPa.

Description of key information

Key study. Method according to OECD 103 / EU Method A.2, GLP study. The boiling point of the test item was observed at 201.1± 0.1°C.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
201.1 °C

Additional information

Key study: The boiling point of the test substance was determined according to OECD 103 and EU A.2 Method (Method according to Siwoloboff). The observed value of boiling point of D-alpha fenchol was determined to be 201.1 ± 0.1ºC under atmospheric pressure of 1001 hPa.