Butyl benzoate

Vapour pressure

Link to relevant study record(s)

Reference

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From 2018-02-07 to 2018-02-13

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.4 (Vapour Pressure)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

static method

Specific details on test material used for the study:

- Batch No.of test material: 20141015
- Purity: 99.35%
- Expiration date of the lot/batch: January 2019
- Stability under test conditions: Room temperature

Key result

Temp.:

20 °C

Vapour pressure:

8.5 Pa

Remarks on result:

other: mean of runs 1 & 2

Full test results:

Temp / °C	Temp / K	P / mbar	P / Pa
Run 1
*20	293.15	0.09	9
20.6	293.75	0.0911	9.11
29.8	302.95	0.172	17.2
39.9	313.05	0.2887	28.87
50.0	323.15	0.5398	53.98
Run 2
*20	293.15	0.08	8
20.9	294.05	0.081	8.1
30.5	303.65	0.166	16.6
40.1	313.25	0.2687	26.87
50.0	323.15	0.4655	46.55

* Determined by extrapolation

Run 1: 10.8 g of sample was degassed for a 70 hour period. Starting vacuum pressure was 0.0063 mbar.

Run 2: 12.5 g of sample was degassed for a 94 hour period. Starting vacuum pressure was 0.0029 mbar.

Conclusions:

The vapor pressure of the test item has been determined to be 8.5 Pa at 20 ºC.

Description of key information

A GLP-compliant study was performed to determine the vapour pressure according to EU Method A.4 without deviations (K1, Dekra, 2018). A vapour pressure of 8.5 Pa was determined at 20°C using the vapour pressure balance method.

Key value for chemical safety assessment

Vapour pressure:

8.5 Pa

at the temperature of:

20 °C