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Physical & Chemical properties

Vapour pressure

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Administrative data

Endpoint:
vapour pressure
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Accepted calculation method Adopted according to HSDB (peer reviewed data base)

Data source

Referenceopen allclose all

Reference Type:
publication
Title:
Vapor Pressure of Coal Chemicals
Author:
Chao J et al.
Year:
1983
Bibliographic source:
J. Phys. Chem. ref. Data, Vol. 12, No. 4, 1033-1063
Reference Type:
review article or handbook
Title:
4-Aminotoluene
Author:
HSDB
Year:
2009
Bibliographic source:
National Library of Medicine (NLM)

Materials and methods

Principles of method if other than guideline:
application of the Cox vapour pressure equation
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
p-toluidine
EC Number:
203-403-1
EC Name:
p-toluidine
Cas Number:
106-49-0
Molecular formula:
C7H9N
IUPAC Name:
p-toluidine
Details on test material:
- Name of test material (as cited in study report): 4-Methylaniline

Results and discussion

Vapour pressure
Temp.:
25 °C
Vapour pressure:
0.381 hPa
Remarks on result:
other: this value was calculated from the coefficients of vapour pressure equation as cited in the literature

Any other information on results incl. tables

The coefficients derived for p-toluidine were:


A =  0.915691
B = -6.57014 E-04
C =  5.11261 E-07
D =  473.445

 

Vapour pressure range: 0.020 - 4443.4 kPa

Temperature range: 290.0 - 700.0 K

Absolute average deviation: 0.3445%

Applicant's summary and conclusion

Executive summary:

Chao J, 1983

The interpolated vapour pressure of p-toluidine at 25°C is 38.1 Pa.