Methyl 4(or 1)-isopropyl-1(or 4)-methylbicyclo[2.2.2]oct-5-ene-2-carboxylate

Vapour pressure

Link to relevant study record(s)

Reference

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Study period:

25/9/2013 to 18/11/2013

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 104 (Vapour Pressure Curve)

Version / remarks:

2006

Deviations:

no

GLP compliance:

no

Type of method:

dynamic method

Key result

Temp.:

20 °C

Vapour pressure:

4.19 Pa

Temp.:

25 °C

Vapour pressure:

6.01 Pa

Temp.:

50 °C

Vapour pressure:

30.97 Pa

Reaction and/or decomposition of the test material was not observed during the test.

Table 1 Vapour pressure results at various temperatures

Temperature (°C)	Temperature (K)	Vapour pressure (Pa)	Vapour pressure (mmHg)	Condition
95	368	267	2	measured up
107	380	600	4.5	measured up
120	393	933	7	measured up
132	405	1600	12	measured up
140	143	2266	17	measured up
150	423	3200	24	measured up
153	426	3600	27	measured up
152	425	3333	25	measured down
147	420	2733	20.5	measured down
135	408	1867	14	measured down
126	399	1200	9	measured down
110	383	667	5	measured down
104	377	533	4	measured down

Table 2 Estimated vapour pressures

Temperature (°C)	Temperature (K)	Vapour pressure (Pa)	Vapour pressure (mmHg)
20	293	4.19	3.1 x 10^-2
25	298	6.01	4.5 x 10^-2
50	323	30.97	2.3 x 10^-1

Conclusions:

The vapour pressure of the test item was 4.19 Pa at 20 °C (293 K), 6.01 Pa at 25 °C (298 K) and 30.97 Pa at 50 °C (323 K).

Executive summary:

The vapour pressure of the test item was determined by dynamic method according to OECD guideline 104. At 20, 25 and 50°C, the vapour pressures were calculated to be 4.19, 6.01, 30.97 Pa, respectively. Reaction and/or decomposition of the test item was not observed during the test.

The study is reliable without restrictions (Klimisch 1) as it follows a standard test guideline.

Description of key information

The vapour pressure of the test item was 4.19 Pa at 20 °C (293 K), 6.01 Pa at 25 °C (298 K) and 30.97 Pa at 50 °C (323 K).

Key value for chemical safety assessment

Vapour pressure:

4.19 Pa

at the temperature of:

20 °C

Additional information

The vapour pressure of the test item was determined by dynamic method according to OECD guideline 104 (2014). At 20, 25 and 50°C, the vapour pressures were calculated to be 4.19, 6.01, 30.97 Pa, respectively. Reaction and/or decomposition of the test item was not observed during the test.

The study is reliable without restrictions (Klimisch 1) as although it is not GLP-compliant it follows a standard test guideline.