Pyridine-2-carboxylic acid

Boiling point

Administrative data

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

07 Jul 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2017

Report date:

2017

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

GLP compliance:

yes

Type of method:

method according to Siwoloboff

Test material

Test material information

Constituent 1

Reference substance name:

Pyridine-2-carboxylic acid

EC Number:

202-719-7

EC Name:

Pyridine-2-carboxylic acid

Cas Number:

98-98-6

Molecular formula:

C6H5NO2

IUPAC Name:

pyridine-2-carboxylic acid

Results and discussion

Boiling point

Key result

Decomposition:

yes

Decomp. temp.:

>= 160 °C

Any other information on results incl. tables

The results of the two repetitions were:

Number of repetition	Results of observation
1	The test item was colourless and transparent at 140 °C. The colour of test item changed from colourless to light orange at about 160 °C, and then changed gradually to orange until the temperature of test equipment reached 210 °C. Although continuous bubbles were observed at about 205 °C, this temperature was not judged as a boiling point of the test item because the colour of test item had already changed.
2	The test item was colourless and transparent at 140 °C. The colour of test item changed from colourless to light orange at about 160 °C, and then changed gradually to orange until the temperature of test equipment reached 210 °C. Although continuous bubbles were observed at about 205 °C, this temperature was not judged as a boiling point of the test item because the colour of test item had already changed.

 

Consequently, the boiling point of test item was not observed because the test item changed at about 160 °C.