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Boiling point

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Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Experimental result sing standard methods of analysis
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Principles of method if other than guideline:
The boiling point determination of Test item was done as per the test guideline OECD 103. The method followed was according to Siwoloboff.
GLP compliance:
no
Type of method:
method according to Siwoloboff
Key result
Boiling pt.:
207.7 °C
Atm. press.:
968.6 hPa
Decomposition:
no
Remarks on result:
other: No other detail available

TEST DESCRIPTION AND RESULT

Method Details

Observations 

Remarks if, any

Guideline

OECD 103

 

 

Method

Method according to Siwoloboff

 

 

Principle of Boiling point test

A sample is heated gradually in a tube which is immersed in a liquid bath. The sample tube is held in close contact with a thermometer and it contains a boiling capillary which is fused about1 cm above its lower end. Upon approach of the boiling temperature bubbles emerge rapidly from the lower open end of the capillary. The boiling temperature is that temperature at which, on momentary cooling, the string of bubbles stops and liquid suddenly rises in the capillary.

 

 

Quantity of chemical used

g/ml

1 ml

 

Nature of the Bath taken

·    Oil bath

·    Water bath

Oil bath

 

 

If oil bath is used, specify

·    Liquid paraffin

·    Silicone oil

Silicon oil

 

Atmospheric pressure

hPa

968.8 hPa

 

Decomposition

Decomposition temperature (°C), if applicable

·                    Yes

·                    No

No

 

 Mean Boiling point (°C) (RESULT)

°C

207.7 °C

 

Boiling point range, if applicable

°C

---------

 

 

Conclusions:
The boiling point determination of test material was done following OECD Guideline 103 and according to the method of Siwoloboff. The test was conducted in replicates and mean boiling point was determine to be 207.7°C at  968.8hPa.
Executive summary:

The boiling point determination of test material was done following OECD Guideline 103 and according to the method of Siwoloboff. The test was conducted in replicates and mean boiling point was determine to be 207.7°C at  968.8hPa.

 

Description of key information

Boiling point:

The boiling point determination of test material was done following OECD Guideline 103 and according to the method of Siwoloboff. The test was conducted in replicates and mean boiling point was determine to be 207.7°C at  968.8hPa.

Key value for chemical safety assessment

Additional information

Boiling point:

The boiling point determination of test material was done following OECD Guideline 103 and according to the method of Siwoloboff. The test was conducted in replicates and mean boiling point was determine to be 207.7°C at  968.8hPa.

Other supporting data from authoritative handbook and databases also suggests that the density of chemical alpha-Ionone was observed to be 237 -258 degree C at 760 mm Hg, 124 Deg C at 11 mmHg & 131 Deg C at 13 mmHg.