Registration Dossier

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2007
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Well documented report of guideline study conducted according to GLP.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2007
Report Date:
2007

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
effusion method: vapour pressure balance

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material: ATBS
- Physical state: white powder
- Analytical purity: 99.4 %
- Lot/batch No.: 061202
- Expiration date of the lot/batch: 30 june 2007
- Storage condition of test material: Room temperature in the dark
- Other: Date received: 18 January 2007

Results and discussion

Vapour pressure
Temp.:
25 °C
Vapour pressure:
0 Pa
Remarks on result:
other: this is the mean of two values: 5.4 and 3.3 x 10-7 Pa

Any other information on results incl. tables

   Run 1   Run 2
 Correlation (r)  - 0.9442  - 0.9459
 Slope  - 4173  - 4394
 Intercept  7.730  8.261
 Vp (Pa) at 25°C  5.4 x 10-7  3.3 x 10-7

The two runs gave a mean vapour pressure value at 25°C of 4.4 x 10-7 Pa.

Applicant's summary and conclusion

Conclusions:
The vapour pressure of ATBS was found to be 4.4 x 10-7 Pa at 25°C using vapour pressure balance.