Registration Dossier

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
8/3/2010-23/4/2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: According to the OECD Guideline and it is GLP

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report date:
2010

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
other: isothermal thermogravimetric effusion method

Test material

Constituent 1
Chemical structure
Reference substance name:
Amines, C20-22-alkyldimethyl
EC Number:
296-866-4
EC Name:
Amines, C20-22-alkyldimethyl
Cas Number:
93164-85-3
Molecular formula:
CnH2nN(CH3)2 n: from 18 to 22
IUPAC Name:
Amines, C20-22-alkyldimethyl
Details on test material:
- Physical state: white solid
- Storage: at room temperature in the dark under nitrogen
- Stability under storage conditions: stable

Results and discussion

Vapour pressure
Temp.:
20 °C
Vapour pressure:
0 Pa
Transition / decomposition
Transition / decomposition:
ambiguous

Any other information on results incl. tables

Temperature (ºC)  Weight loss (µg/min)  VT (g/cm^2/h)  log VT 
130 8.633 1.03x10^-3  -2.99
  6.640 7.93x10^-4  -3.10
140 15.42 1.84x10^-3  -2.74
  13.03 1.56x10^-3  -2.81
150 27.53 3.29x^10 -3 -2.48
  24.81 2.96x10^-3  -2.53
 160 49.05 5.85x10^-3  -2.23
  45.53  5.43x10^-3  -2.26

Applicant's summary and conclusion

Conclusions:
The isothermal thermogravimetric effusion method was chosen for the determination of the vapours pressure of the substance. The vapour pressure of the test substance was <= 4.92x10^-4 Pa =< 3.69x10^6 mmHg
Executive summary:

According to the OECD104. The isothermal thermogravimetric effusion method was chosen for the determination of the vapours pressure of the substance. The vapour pressure of the test substance was 0.000492 Pa