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Physical & Chemical properties

Vapour pressure

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Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: GLP status not known, guideline study, available as an unpublished report, reliable with restrictions
Qualifier:
according to guideline
Guideline:
other: EN 13016-1
GLP compliance:
not specified
Type of method:
other: DVPE
Temp.:
37.8 °C
Vapour pressure:
145 kPa
Conclusions:
The vapour pressure of substance 102110-14-5 is 145 kPa at 37.8 °C.
Executive summary:

This is a guideline study and is considered reliable and suitable for use for this endpoint. The vapour pressure of substance 102110-14-5 is 145 kPa at 37.8 °C.

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP status not known, guideline study, experimental study, no restrictions, fully adequate for assessment
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
GLP compliance:
not specified
Type of method:
static method
Key result
Temp.:
20.7 °C
Vapour pressure:
5.62 kPa
Key result
Temp.:
30.2 °C
Vapour pressure:
8.59 kPa
Key result
Temp.:
40.2 °C
Vapour pressure:
12.93 kPa
Key result
Temp.:
50.1 °C
Vapour pressure:
18.84 kPa
Key result
Temp.:
60.2 °C
Vapour pressure:
27.36 kPa
Key result
Temp.:
70.2 °C
Vapour pressure:
38.52 kPa
Key result
Temp.:
80.2 °C
Vapour pressure:
53.17 kPa
Key result
Temp.:
90.2 °C
Vapour pressure:
72.29 kPa
Key result
Temp.:
100.1 °C
Vapour pressure:
93.64 kPa
Conclusions:
The vapour pressure of the substance is 5.62 kPa at 20.7 °C.
Executive summary:

Although the GLP status is not known, the study follows a standard guideline and is considered to be reliable. The vapour pressure of the substance is 5.62 kPa at 20.7 °C.

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
08/12/2008 - 08/04/2009
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP compliant, guideline study, experimental study, no restrictions, fully adequate for assessment
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
GLP compliance:
yes
Type of method:
static method
Key result
Temp.:
20 °C
Vapour pressure:
15.51 kPa
Key result
Temp.:
50 °C
Vapour pressure:
50.37 kPa
Conclusions:
The vapour pressure at 20 °C is 15.51 kPa, the vapour pressure at 50 °C is 50.37 kPa.
Executive summary:

The study is GLP compliant and carried out to a standard guideline, therefore the data is considered reliable. The vapour pressure at 20 °C is 15.51 kPa, the vapour pressure at 50 °C is 50.37 kPa.

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
06/06/2007 - 16/10/2007
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP compliant, guideline study, available as unpublished report, no restrictions fully adequate for assessment
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
GLP compliance:
yes
Type of method:
static method
Key result
Temp.:
20 °C
Vapour pressure:
42.722 kPa
Remarks on result:
other: Calculated from the regression equation
Key result
Temp.:
25 °C
Vapour pressure:
51.411 kPa
Remarks on result:
other: Calculated from the regression equation

Vapour pressure was measured over the temperature range 4.54-49.43°C and used to derive a regression equation: ln(p/hPa) = 17.723 - 3616.72 / (290.03 + t) where t is temperature in °C. This equation was used to calculate the vapour pressure at 20 and 25°C.

temperature°C vapour pressure (hPa)
4.54 231.8
9.53 283.9
16.5 373.8
24.46 504.1
32.46 670.8
39.46 851.2
44.45 1002.4
49.43 1174
Conclusions:
The vapour pressure of 68476-55-1 at 20°C is 42.722 kPa and at 25°C is 51.411 kPa. These values were calculated by interpolation using a regression equation.
Executive summary:

This study was conducted to a standard guideline and according to GLP and so is considered fully reliable for use as a key study. The interpolated vapour pressure of 68476-55-1 at 20°C is 42.722 kPa and at 25°C is 51.411 kPa.

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
23/10/2007 - 04/03/2008
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP compliant,guideline study, available as unpublished report, no restrictions, fully adequate for assessment
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
GLP compliance:
yes
Type of method:
static method
Key result
Temp.:
20 °C
Vapour pressure:
15.09 kPa
Key result
Temp.:
50 °C
Vapour pressure:
47.66 kPa

Vapour pressure was measured over the temperature range 19.5-74.42°C and used to derive a regression equation: ln(p/hPa) = 17.018 - 3395.29 / (262.9 + t) where t is temperature in °C.

Conclusions:
The vapour pressure of 92128-65-9 at 20°C is 150.9hPa and at 50°C is 476.9hPa. These values were calculated by interpolation using a regression equation.
Executive summary:

This study was conducted to a standard guideline and according to GLP and so is considered fully reliable for use as a key study. The interpolated vapour pressure of 92128-65-9 at 20°C is 150.9hPa and at 50°C is 476.9hPa.

Description of key information

The vapour pressure of the streams in this category ranges from 5.62 - 145.0 kPa at 20°C.

Key value for chemical safety assessment

Vapour pressure:
47.07 kPa
at the temperature of:
20 °C

Additional information

Data are available for all five streams in this category (64741-84-0: 5.62 kPa at 20°C, 64742-49-0: 15.51 kPa at 20°C, 92128-65-9: 15.09 kPa at 20°C, 68476-55-1: 42.722 kPa at 20°C and 58.484 kPa at 25°C, 102110-14-5: 145.0 kPa at 37.8°C) from Chilworth laboratories (2009), BASF (2009), GKA competence centre analytics (2009, 2008, 2008) and Shell (2009).

The mean of the vapour pressure values for the category is 47.07 kPa at 20°C and this has been used to complete the 'key value for chemical safety assessment'.