Registration Dossier
Registration Dossier
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EC number: 203-403-1 | CAS number: 106-49-0
Vapour pressure
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:
- 1 983
- 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:
- 2 009
- 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
- Reference substance name:
- p-toluidine
- EC Number:
- 203-403-1
- EC Name:
- p-toluidine
- Cas Number:
- 106-49-0
- Molecular formula:
- C7H9N
- IUPAC Name:
- 4-methylaniline
- Details on test material:
- - Name of test material (as cited in study report): 4-Methylaniline
Constituent 1
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.
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