Registration Dossier

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study according to OECD 104

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1997
Report Date:
1997

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
gas saturation method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
name: Cyanamide, (4,5-dihydroxy-2-thiazolyl)-
molecular formula: C4 H5 N3 S
molecular weight: 127.2
physical state: solid
analytical purity: 99.8 %

Results and discussion

Vapour pressure
Temp.:
20 °C
Vapour pressure:
3.7 Pa
Transition / decomposition
Transition / decomposition:
no

Applicant's summary and conclusion

Executive summary:

The vapour pressure of CIT was determined between 30 and 70 °C by the gas saturation method.

Using the regression coefficients calculated by regression analysis the following vapour

pressures were obtained for 20 and 25 °C: ures were obtained for 20 and 25 °C:

20 °C : vapour pressure 3.7x10 -7 Pa, gas saturation concentration: 20 ng/m3

25 °C: vapour pressure 8.4x10 -7 Pa, gas saturation concentration: 43 ng/m3