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Physical & Chemical properties

Vapour pressure

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
26 November 2015 to 16 March 2016
Reliability:
1 (reliable without restriction)
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
dynamic method
Temp.:
20 °C
Vapour pressure:
0.88 hPa
Remarks on result:
other: Calculated vapour pressure value
Temp.:
25 °C
Vapour pressure:
1.23 hPa
Remarks on result:
other: Calculated vapour pressure value
Temp.:
50 °C
Vapour pressure:
5.41 hPa
Remarks on result:
other: Calculated vapour pressure value
Transition / decomposition:
no
Thermal Stability

The test item N,N-Dimethyloctan-1-amine showed no significant thermal effects up to the final temperature of 300°C

Table 1: Results of the DSC-measurements on thermal stability

No.

Sample weight/ mg

Start of effect / °C

Energy / J/g

Remarks

PN10183

10.45

130

-10

Figure 2

 

Dynamic method: Vapour-liquid equilibrium (VLE)

The vapour pressure was measured in the temperature range of 54.3 to 114.5 °C. The measured vapour pressure values together with the measured temperatures are listed in Table 2.

Table 2: Results of the dynamic method

No.

Temperature / °C

Vapour pressure / hPa

Remark

1

54.3

6.8

measured up

2

76.4

19.8

measured up

3

91.8

39.8

measured up

4

101.1

59.6

measured up

5

108.8

79.7

measured up

6

114.5

99.4

measured up

7

111.0

89.8

measured down

8

103.2

69.6

measured down

9

93.5

50.2

measured down
Conclusions:
The vapour pressure of the test item N,N-Dimethyloctan-1-amine was calculated by extrapolation of the measured vapour pressure curve for the temperatures 20, 25 and 50 °C, according to Regulation EC 440/2008 Method A.4. Vapour Pressure and OECD Test Guideline 104 (2006).


Executive summary:

Report: Hernandez, C.(2016): N,N-Dimethyloctan-1-amine Determination of physico-chemical properties Vapour Pressure (EC A.4. and OECD 104)

Source: consilab Gesellschaft für Anlagensicherheit mbH, Industriepark Höchst, G830/G840, 65926 Frankfurt am Main, Germany;

unpublished Report:CSL-15 -1314.01; Eurofins Study-No. S15 -05594

Guidelines: OECD 104 and EC A.4

Deviations: no

GLP: yes (incl. certificate)

Materials and Methods: dynamic method

Study period: 26 November 2015 to 16 March 2016

Results: The vapour pressure of the test item N,N-Dimethyloctan-1-amine was calculated by extrapolation of the measured vapour pressure curve for the temperatures 20, 25 and 50 °C, according to Regulation EC 440/2008 Method A.4. Vapour Pressure and OECD Test Guideline 104 (2006).

 Temperature / °C  Vapour pressure / hPa
 20  0.88
 25  1.23
 50  5.41

Description of key information

Key value for chemical safety assessment

Vapour pressure:
0.88 hPa
at the temperature of:
20 °C

Additional information