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Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2009-05-06 to 2009-07-03
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7950 (Vapor Pressure)
GLP compliance:
yes (incl. QA statement)
Type of method:
static method
Key result
Temp.:
25 °C
Vapour pressure:
430 Pa

The full results of the two runs are presented in Tables 1 and 2.

Table 1: Determination of the vapour pressure of the test item (run 1)

Temperature (°C)

Temperature (K)

1/Temperature (1/K)

Vapour pressure (Pa)

Log VP

25

298

0.00335

460

2.663

30

303

0.00330

560

2.748

35

308

0.00325

680

2.833

40

313

0.00319

800

2.903

45

318

0.00314

950

2.978

Table 2: Determination of the vapour pressure of the test item (run 2)

Temperature (°C)

Temperature (K)

1/Temperature (1/K)

Vapour pressure (Pa)

Log VP

25

298

0.00335

390

2.591

30

303

0.00330

520

2.716

35

308

0.00325

640

2.806

40

313

0.00319

780

2.892

45

318

0.00314

950

2.978

The two runs gave a mean vapour pressure value at 25 °C of 430 Pa.

Conclusions:
The vapour pressure of the test item is 430 Pa at 25 °C.
Executive summary:

The vapour pressure of the test item was determined according to EPA OPPTS 830.7950 and is 430 Pa at 25 °C.

Description of key information

The vapour pressure of the test item is 430 Pa at 25 °C.

Key value for chemical safety assessment

Vapour pressure:
430 Pa
at the temperature of:
25 °C

Additional information