Registration Dossier

Administrative data

Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
06.Jul. 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: high performance analytical instrument

Data source

Reference
Reference Type:
other: test report
Title:
Unnamed
Year:
2015
Report Date:
2015

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
the surface tension is determined with a LAUDA-Drop volume tensiometer TVT.
Drops are generated using a suitable device. These drops grow as long as their weight is less than their holding force on the capillary. As soon as this weight has reached the same magnitude as the holding force, the drop falls and the volume of the falling drop is measured. The surface tension is then automatically calculated from this volume with the LAUDA-drop volume tensiometer TVT.
GLP compliance:
no
Type of method:
other: Drop-Weight method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
other: viscous liquid
Details on test material:
Stabilized EMIM BF4:
Appearance: lightly yellow, faintly turbid
Purity: 94.44% (EMIM+, HPLC); 94.11% (BF4-, titration); 4.70% (Stabilizer, HPLC)

Results and discussion

Surface tension
Surface tension:
50.73 mN/m
Temp.:
20 °C
Conc.:
94.44 other: wt% (EMIM+, HPLC)

Any other information on results incl. tables

 date: 2015-07-06    demin. water  17PI131_ISIS-B2001
 temperature  °C  20  20
 density  g/cm³  0.9982  1.2669
 surface tension  mN/m  73.0773.00 50.6950.77 
 average  mN/m  73.04  50.73
 standard deviation  mN/m  0.06  0.06

Applicant's summary and conclusion