Pyridinium, 1-(phenylmethyl)-, ethyl methyl derivs., chlorides

Vapour pressure

Link to relevant study record(s)

Reference

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Study period:

19 FEB 2010 to 9 NOV 2010

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

Temp.:

20 °C

Vapour pressure:

2 mBar

Vapour Pressure

Temp/°C	Temp/K	P/mbar	**P/Pa
Run 1
*20	293.15	2	190
53.2	326.35	8	800
66.5	339.65	14	1400
73.4	346.55	21	2100
87.7	360.85	33	3300
94.1	367.25	43	4300
109.6	382.75	55	5500
118.3	391.45	79	7900
Run 2
*20	293.15	2	178
53.1	326.25	8	800
72.6	345.75	19	1900
87.6	360.75	33	3300
97.0	370.15	47	4700
114.3	387.45	66	6600
118.6	397.75	87	8700

* - Determined by extrapolation

** - Calculated

Conclusions:

The vapour pressure was determined to be 2 mbar (20°C), in accordance with Method A.4.

Executive summary:

The vapour pressure was determined, using a static method, as 2 mbar, equivalent to 200 Pa at 20°C

Note that the substance is UVCB with mixed molecular weight fractions and this will represent the more volatile components.

A figure of 200 Pa @ 20 C is used for the CSR

Description of key information

The vapour pressure was determined, using a static method, as 2 mbar, equivalent to 200 Pa.

Note that the substance is UVCB with mixed molecular weight fractions and this will represent the more volatile components.

A figure of 200 Pa @ 20 C is used for the CSR

Key value for chemical safety assessment

Vapour pressure:

200 Pa

at the temperature of:

20 °C

Additional information

The vapour pressure was determined according to EU Method A.4 (vapour pressure).