1-Propene, 1,3,3,3-tetrafluoro-

Vapour pressure

Link to relevant study record(s)

Reference

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

study well documented, meets generally accepted scientific principles, acceptable for assessment

Qualifier:

no guideline followed

Principles of method if other than guideline:

The vapour pressure of HFO-1234ze was measured using a heated MKS pressure transducer. A cylinder of degassed HFO-1234ze(E) was placed in a constant temperature bath. The pressure was measured using a MKS pressure transducer (model 628RCTBE1B), which was heated to 100 °C to avoid condensation. The temperature of the bath was measured using a platinum thermometer which has an uncertainty of ± 0.001 °C. The MKS pressure transducer was calibrated using a dead weight tester and determined to have an uncertainty of ± 0.25 %.

GLP compliance:

no

Type of method:

other: heated MKS pressure transducer

Key result

Temp.:

21 °C

Vapour pressure:

427 kPa

Remarks on result:

other: MKS transducer method

Conclusions:

The vapour pressure of HFO-1234ze is 427.1 kPa at 20 °C

Executive summary:

The vapour pressure of HFO-1234ze was determined using a heated MKS pressure transducer and found to be 427.1 kPa at 20 °C.

Description of key information

The test substance has a vapour pressure 427.1 kPa at 20 °C.

Key value for chemical safety assessment

Vapour pressure:

427.1 kPa

at the temperature of:

20 °C

Additional information

The vapour pressure of HFO-1234ze was determined to be 427.1 kPa at 20 °C with heated MKS pressure transducer (key study) and 420 kPa at 20 °C using the method of constant volume piezometer (supporting study).