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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:
From October 2009 to February 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
method according to Siwoloboff
Key result
Boiling pt.:
568.85 K
Atm. press.:
102.1 kPa
Decomposition:
no
Remarks on result:
other: S.D. = ± 0.4 K
Key result
Boiling pt.:
295.7 °C
Atm. press.:
102.1 kPa
Decomposition:
no

 Table 1. The values of an initial boiling point of Amides, coco, N-(2-hydroxypropyl)

 Sample

Boiling point,K

Atmospheric pressure, kPa

1

568.45

102.1

2

568.85

102.1

3

569.25

102.1

Average values

568.85

102.1

Conclusions:
The average value of the initial boiling point was determined to be 568.85 ± 0.4 K (295.7°C) at atmospheric pressure (102.1 kPa).
Executive summary:

A study was conducted to determine the boiling point of the test substance according to EU Method A.2. using BÜCHI melting point B-545 apparatus. A preliminary study was carried out to determine the boiling temperature range. For the main study, heating was conducted at 10.0 K/min starting at 373.15 K. At approximately 10.0 K below the expected boiling temperature, heating was reduced to 3.0 K/min. The boiling point was read when a quick continuous flow of bubbles (such as a string of pearls) was formed at the lower open end of the capillary and disappeared when liquid suddenly rose in the boiling capillary. The average value of the initial boiling point was determined to be 568.85 ± 0.4 K (295.7°C) at atmospheric pressure (102.1 kPa) (Olszewska, 2010). 

Description of key information

The boiling point was determined according to EU Method A.2 (Olszewska, 2010).

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
295.7 °C

Additional information