Phenylacetylene

Vapour pressure

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

vapour pressure

Type of information:

not specified

Remarks:

Data on Vapour Pressure comes from Safety Data Sheet.

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

data from handbook or collection of data

Remarks:

Data on Vapour Pressure comes from the Safety Data Sheet.

Justification for type of information:

Data on Vapour Pressure comes from Safety Data Sheet. This is not considered critical for the assessment. Therefore validation applies with acceptable restrictions.

Reason / purpose for cross-reference:

reference to other study

Qualifier:

equivalent or similar to guideline

Guideline:

other: Data on Vapour Pressure comes from Safety Data Sheet. No information on TEST GUIDELINE provided.

GLP compliance:

not specified

Type of method:

other: Data on Vapour Pressure comes from Safety Data Sheet. No information on TYPE OF METHOD provided.

Key result

Temp.:

ca. 37.7 °C

Vapour pressure:

ca. 23.465 hPa

Remarks on result:

other: Data as reported into the Safety Data Sheet

Conclusions:

Vapour Pressure of test item is stated to be 23.4647 hPa at 37.7 °C .

Executive summary:

The Vapour Pressure of test item comes from the Safety Data Sheet of manufacture

Reference 2

Endpoint:

vapour pressure

Type of information:

(Q)SAR

Adequacy of study:

supporting study

Study period:

December 2021

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

results derived from a valid (Q)SAR model and falling into its applicability domain, with limited documentation / justification

Justification for type of information:

QSAR prediction:
The value is not an experimental result, however the QSAR model is recommended by the ECHA guidance document on information requirements, and is well documented with regard to validation parameters according to OECD principles. In addition, the substance investigated matches with the parameters of training set compounds and the result is considered as reliable with restriction.

Reason / purpose for cross-reference:

reference to other study

Reason / purpose for cross-reference:

reference to other study

Principles of method if other than guideline:

QSAR Estimation

Temp.:

ca. 25 °C

Vapour pressure:

ca. 275 Pa

Remarks on result:

other: PATTE,F et AL. (1982)

Temp.:

ca. 25 °C

Vapour pressure:

ca. 773 Pa

Remarks on result:

other: Mean of Antoine & Grain methods (5.8 mmHg)

Temp.:

ca. 25 °C

Vapour pressure:

ca. 836 Pa

Remarks on result:

other: Antoine Method (6.27 mmHg)

Temp.:

ca. 25 °C

Vapour pressure:

ca. 710 Pa

Remarks on result:

other: Modified Grain Method (5.33 mmHg)

Conclusions:

The Vapour Pressure for the test substance is estimated to be ca 773 Pa (average value) at 25°C, using a boiling point of 142°C as input.

Executive summary:

Vapour pressure of the test substance was estimated with the QSAR model MPBPWIN from Episuite.

Description of key information

Vapour Pressure of test item is stated to be 23.4647 hPa at 37.7 °C .

Key value for chemical safety assessment

Vapour pressure:

23.465 hPa

Additional information

A reliable Vapour Pressure data of test item was available on the Safety Data Sheet of manufacturer. Some restrictions apply so a QSAR estimation was performed to confirm this value.

The Vapour Pressure was estimated by QSAR (EpiSuite) using the boiling point as input.

The calculated (QSAR) Vapour Pressure confirmed the Vapour Pressure by the manufacturer of substance. This is retained as key result.