Registration Dossier

Physical & Chemical properties

Additional physico-chemical information

Administrative data

Endpoint:
additional physico-chemical information
Remarks:
Measurement of critical point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report Date:
2017

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
For the measurement of critical data an equilibrium cell was used, which is made of Hastelloy and equipped with two sapphire windows. For the determination of the critical temperature, pressure, and volume the cell was filled with known amounts of substance and heated approaching the critical point. The phase boundary was continuously kept in the middle of the cell by adjustment of the filling if necessary. At the critical point the phase boundary disappeared and the critical opalescence was visually observed.

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
liquid

Results and discussion

Applicant's summary and conclusion