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Physical & Chemical properties

Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
January 18, 2016 - March 22, 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7950 (Vapor Pressure)
GLP compliance:
yes
Type of method:
spinning rotor
Specific details on test material used for the study:
Batch Number: E00268-011-113/E00350-276
Purity: 100%
Sample Retest Date: March 26, 2017
Key result
Temp.:
20 °C
Vapour pressure:
0.002 Pa

The system offset pressure using a molecular weight of 350.535 g/mol was 5.4494 x 10-5Pa. The calculated mean measured vapor pressure of the test substance by the SRG method, using a molecular weight of 350.535 g/mol, was 1.92 x 10-3Pa at 20 ± 1°C. The measured vapor pressure ranged from a minimum of 1.86 x 10-3Pa to a maximum of 1.99 x 10-3Pa. Individual and mean measured vapor pressures and out-gassing rates for the test substance at 20 ± 1°C using a molecular weight of 350.535 g/mol are presented in Table 4.

Table 4

 

Vapor Pressure Measurements and Out-Gassing Rates for the Test Substance

by the Spinning Rotor Gauge Method at 20 ± 1°C

 

 

Molecular Weight

(g/mol)

 

Measured

Vapor Pressure

(Pa)

Min/Max

Temperature

(°C)

Mean

Measured

Vapor Pressure

(Pa)

 

Standard

Deviation

(Pa)

 

1.86 x 10-3

 

 

 

350.535

1.99 x 10-3

19.9/20.1

1.92 x 10-3

6.66 x 10-5

 

1.90 x 10-3

 

 

 

 

 

 

 

Molecular Weight

(g/mol)

 

 

Measured

Out-gassing Rate

(Pa/s)

Min/Max

Temperature

(°C)

 

Mean

Measured

Out-gassing Rate

(Pa/s)

 

 

Standard

Deviation

(Pa/s)

 

4.67 x 10-6

 

 

 

350.535

4.75 x 10-6

19.9/20.1

4.67 x 10-6

8.00 x 10-8

 

4.59 x 10-6

 

 

 
Conclusions:
The mean vapor pressure for the test substance at 20 ± 1ºC was 1.92 x 10-3 ± 6.66 x 10-5 Pa (N = 3, CV = 3.5%) using the spinning rotor gauge method.
Executive summary:

The test was performedbased on procedures in the U.S. EPA Product Properties Test Guidelines, OPPTS 830.7950,Vapor Pressure(1) and OECD Guideline for Testing of Chemicals, 104,Vapour Pressure(2).

The mean vapor pressure for the test substance at 20 ± 1ºC was 1.92 x 10-3 ± 6.66 x 10-5 Pa (N = 3, CV = 3.5%) using the spinning rotor gauge method.

Description of key information

The mean vapor pressure for the test substance at 20 ± 1ºC was 1.92 x 10-3± 6.66 x 10-5Pa (N = 3, CV = 3.5%) using the spinning rotor gauge method.

Key value for chemical safety assessment

Vapour pressure:
0.002 Pa
at the temperature of:
20 °C

Additional information

The test was performedbased on procedures in the U.S. EPA Product Properties Test Guidelines, OPPTS 830.7950,Vapor Pressure(1) and OECD Guideline for Testing of Chemicals, 104,Vapour Pressure(2).

The mean vapor pressure for the test substance at 20 ± 1ºC was 1.92 x 10-3± 6.66 x 10-5Pa (N = 3, CV = 3.5%) using the spinning rotor gauge method.