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Administrative data

Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2018-12-03 to 2018-12-17
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guidelineopen allclose all
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Qualifier:
equivalent or similar to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Qualifier:
equivalent or similar to guideline
Guideline:
EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
GLP compliance:
no
Type of method:
method according to Siwoloboff

Test material

Constituent 1
Chemical structure
Reference substance name:
5-fluoro-1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carbonitrile
EC Number:
811-889-7
Cas Number:
1350653-26-7
Molecular formula:
C14 H8 F2 N4
IUPAC Name:
5-fluoro-1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carbonitrile
Test material form:
solid

Results and discussion

Boiling point
Key result
Boiling pt.:
259 °C
Atm. press.:
101.3 kPa

Any other information on results incl. tables

The determination of the boiling point was performed by visual judgement using the capillary.

At about 268.5 °C in the preliminary tests, the number of air bubbles increased. To confirm the result obtained in the preliminary tests, the determination of the boiling point was performed three times, heating quickly up to 350 °C and afterwards slowly using a heating rate of 0.5 °C/min.

A clear normal boiling point, as defined in the guideline with a current stream of bubbles evolving from the capillary, was observed at a heating temperature of 368.9 °C.

Applicant's summary and conclusion

Conclusions:
In conclusion, using the capillary method according to EU A.2, OECD 103, OPPTS 830.722 the test item Fluorpyridonitril started boiling at 368.9 °C (642.0 K) at normal pressure (101.325 kPa).
Executive summary:

Title:Fluorpyridonitril: Determination of the Boiling Point

Purpose:

The purpose of this study was to evaluate the boiling point of

Fluorpyridonitril by the capillary method using an electronic controlled heating system.

Guidelines/Recommendations:

This study was based on the procedures indicated by the following internationally accepted methods:

Commission Regulation (EC) No.440/2008 laying down test methods pursuant to Regulation (EC) No.1907/2006 of the European Parliament and of the Council on the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) (originally published as Council Regulation (EC) No.440/2008, corrigendum according to Official Journal of the European Union (EN) dated June 3, 2008, L 143/55), Annex, Part A, A.2.: “Boiling Temperature”, Official Journal of the European Union, L 142, Volume 51, 31 May 2008

Organization for Economic Co-operation and Development (OECD), Guidelines for Testing of Chemicals, Guideline No.103, “Boiling Point”, adopted July 27, 1995

Product Properties Test Guideline OPPTS 830.7220 of the United States Environment Protection Agency (EPA), August 1996

Results:

The determination of the boiling point was performed by visual judgement using the capillary.

At about 268.5 °C in the preliminary tests, the number of air bubbles increased. To confirm the result obtained in the preliminary tests, the determination of the boiling point was performed three times, heating quickly up to 350 °C and afterwards slowly using a heating rate of 0.5 °C/min.

A clear normal boiling point, as defined in the guideline with a current stream of bubbles evolving from the capillary, was observed at a heating temperature of 368.9 °C.

Conclusion: In conclusion, using the capillary method according to EU A.2, OECD 103, OPPTS 830.722 the test item Fluorpyridonitril started boiling at 368.9 °C (642.0 K) at normal pressure (101.325 kPa).

This study is classified acceptable and satisfies the guideline requirements for boiling point studies.

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