Registration Dossier

Diss Factsheets

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

Constituent 1
Chemical structure
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.

Applicant's summary and conclusion

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