Registration Dossier

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
from 23 to 24 August 1993.
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP study.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1993
Report Date:
1993

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
not specified
Qualifier:
according to
Guideline:
other: The Health and safety Commission Approved Code of Practice, Test A4.
Deviations:
not specified
GLP compliance:
yes
Type of method:
effusion method: vapour pressure balance

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
sample name: atrazine (pure)
Physical state: white powder
Stated purity: 99.5%
melting point: 177-178°C
storage: dark conditions, 4°C
Molar mass: 215.7 gmol^-1

Results and discussion

Vapour pressure
Temp.:
25 °C
Vapour pressure:
0 Pa
Remarks on result:
other: With a calculated error range of 63%
Transition / decomposition
Transition / decomposition:
no

Any other information on results incl. tables

The sample was maintained below 123°C during measurements and did not appear to have visibly changed at the temperatures used. There was considerable condensation onto the balance pan during the experimental period and some data were corrected for this.

Applicant's summary and conclusion