1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-(trifluoromethyl)pentane

Vapour pressure

Link to relevant study record(s)

Reference

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Study period:

27 - 28 Jun 2005

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 104 (Vapour Pressure Curve)

Deviations:

no

GLP compliance:

yes

Type of method:

static method

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: PDC Lot 1, Pail 2
- Expiration date of the lot/batch: 23 Mar 2006
- Purity: 99.959%
- Synonyms: MTDID 665
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: room temperature in the dark

Key result

Temp.:

20 °C

Vapour pressure:

6.25 kPa

Remarks on result:

other: ±0.06 kPa

Test no.:

#1

Temp.:

37.92 °C

Vapour pressure:

14 879 Pa

Remarks on result:

other: First vapour pressure

Test no.:

#2

Temp.:

32.38 °C

Vapour pressure:

11 545 Pa

Remarks on result:

other: Second vapour pressure

Test no.:

#3

Temp.:

24.69 °C

Vapour pressure:

7 915 Pa

Remarks on result:

other: Third vapour pressure

Table, Measurements from the vapor pressure experiment

Trial 1 (37.92 °C)	P (Pa)	ln P	Trial 2 (32.38 °C)	P (Pa)	ln P	Trial 3 (24.69 °C)	P (Pa)	ln P
─	─	─	12¹	11537	9.35	24¹	7918	8.98
1	14879	9.61	13	11544	9.35	25	7916	8.98
2	14881	9.61	14	11547	9.35	26	7915	8.98
3	14881	9.61	15	11545	9.35	27	7914	8.98
4	14876	9.61	16	11548	9.35	28	7915	8.98
5	14880	9.61	17	11548	9.35	29	7914	8.98
6	14879	9.61	18	11545	9.35	30	7914	8.98
7	14883	9.61	19	11543	9.35	31	7916	8.98
8	14879	9.61	20	11545	9.35	32	7915	8.98
9	14876	9.61	21	11545	9.35	33	7914	8.98
10	14878	9.61	22	11546	9.35	34	7915	8.98
11	14876	9.61	23	11544	9.35	35	7916	8.98
average	14879 ± 4²	9.61 ± 0.01	─	11545 ± 3	9.35 ± 0.01	─	7915 ± 2	8.98 ± 0.01

1, System instability. The lnP value obtained in this measurement was not used for the calculations

2, Mean ± 2 x error calculation

Conclusions:

The vapor pressure of HFE s-601 at 20 °C is 6.25 ± 0.06 kPa (46.9 ± 0.5 mm Hg) (OECD 104)

Executive summary:

The vapor pressure of of HFE s-601 was determined by the static method. Eleven vapor pressures were taken at each of three, thermostatted temperatures and the values entered into a Clapeyron equation to extrapolate to 20 °C. The test was done according to OECD guidelines and in accord with GLP, and is therefore considered reliable without restrictions.

Description of key information

The vapor pressure of HFE s-601 at 20 °C is 6.25 ± 0.06 kPa (46.9 ± 0.5 mm Hg) (OECD 104)

Key value for chemical safety assessment

Vapour pressure:

6.25 kPa

at the temperature of:

20 °C

Additional information

The vapor pressure of of HFE s-601 was determined by the static method. Eleven vapor pressures were taken at each of three, thermostatted temperatures and the values entered into a Clapeyron equation to extrapolate to 20 °C. The test was done according to OECD guidelines and in accord with GLP, and is therefore considered reliable without restrictions.