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Diss Factsheets

Physical & Chemical properties

Vapour pressure

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Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: 2g: Data from handbook or collection of data

Data source

Reference
Reference Type:
review article or handbook
Title:
No information
Author:
Yaws C. L.
Year:
1994
Bibliographic source:
Handbook of vapour pressure. Vol. 2: C5-C7 Compounds. Edited and Published by Gulf Publishing Company, Houston, Texas.

Materials and methods

Principles of method if other than guideline:
no data
GLP compliance:
not specified
Type of method:
other: Not specified in index / handbook

Test material

Constituent 1
Chemical structure
Reference substance name:
α,α,α-trichlorotoluene
EC Number:
202-634-5
EC Name:
α,α,α-trichlorotoluene
Cas Number:
98-07-7
Molecular formula:
C7H5Cl3
IUPAC Name:
α,α,α-trichlorotoluene
Constituent 2
Reference substance name:
Trichloromethylbenzene
IUPAC Name:
Trichloromethylbenzene
Details on test material:
no data

Results and discussion

Vapour pressureopen allclose all
Temp.:
9 °C
Vapour pressure:
10 Pa
Temp.:
40.6 °C
Vapour pressure:
100 Pa
Temp.:
81.5 °C
Vapour pressure:
1 kPa
Temp.:
136.2 °C
Vapour pressure:
10 kPa
Temp.:
213 °C
Vapour pressure:
100 kPa
Temp.:
20 °C
Vapour pressure:
0.42 hPa
Remarks on result:
other: Intrapolated value with the equation provided

Any other information on results incl. tables

This handbook report also an equation for the calculation of the vapour pressure of benzotrichloride:

log Pv= A + B/T + C x log T + D x T + E T²

P: mmHg

T: K

A= 0.4912

B= -2.7285E+03

C= 4.4706

D= -1.0580E-02

E= 4.7621E-06

Validity of the equation when T is between 268 and 737 K.

Applicant's summary and conclusion

Conclusions:
The reported values for the vapor pressure of benzotrichloride are:
9°C - 10 Pa
40.6°C - 100 Pa
81.5°C - 1 kPa
136.2°C - 10 kPa
213.0°C - 100 kPa
Executive summary:

Data from handbook of Vapor Pressure: the values reported by this handbook for the vapor pressure of benzotrichloride are:

9°C - 10 Pa

40.6°C - 100 Pa

81.5°C - 1 kPa

136.2°C - 10 kPa

213.0°C - 100 kPa

Besides, this handbook reports an equation that allows calculation of the vapour pressure at 20°C. Using this equation the vapour pressure at 20°C is 0.42 hPa.