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Physical & Chemical properties

Boiling point

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Administrative data

Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1987
Report date:
1987

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
other: OECD 104
Principles of method if other than guideline:
Measurement method:
1) Above the solid according to the carrier gas entrainment method.
2) Above the liquid using the dynamic method under a nitrogen atmosphere.

2) is relevant for the boiling point
GLP compliance:
no
Type of method:
dynamic method
Remarks:
using nitrogen atmosphere

Test material

Constituent 1
Chemical structure
Reference substance name:
Phthalonitrile
EC Number:
202-044-8
EC Name:
Phthalonitrile
Cas Number:
91-15-6
Molecular formula:
C8H4N2
IUPAC Name:
benzene-1,2-dicarbonitrile
Details on test material:
- Name of test material (as cited in study report): phthalonitrile
- Analytical purity: purity 99.96%

Results and discussion

Boiling point
Key result
Boiling pt.:
304.5 °C
Atm. press.:
1 013.3 hPa
Remarks on result:
other: extrapolated based on experimental data

Any other information on results incl. tables








































Temperature, °C



Vapour pressure (above the solid), hPa



Thermal exposure time, h



78.4



0.076



 



88.4



0.232



 



98.4



0.430



 



108.4



1.276



 



118.4



2.050



ca. 200



140.7 – 141.64



solidification range



 



 





























































Temperature, °C



Vapour pressure (above the liquid), hPa



Thermal exposure time, h



148.05



10.090



0.30



164.85



20.078



0.51



175.49



30.055



0.67



195.24



60.002



0.84



211.52



100.940



0.99



250.66



300.510



1.24



286.76



699.890



1.48



295.92



849.660



1.63



303.88



999.400



1.78


304.5

1013.3



---




measured range 148.05 to 303.88°C calculated from the regression derived equation  (mean deviation: 0.117 %): 


ln (p/bar) = A + B / (C + t/°C) A: 9.9611 B: -4914.33 C: 189.50


 

Applicant's summary and conclusion