Ichthammol

Surface tension

Administrative data

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

12 December 2017

Reliability:

1 (reliable without restriction)

Data source

Reference

Reference Type:

other: Determination of surface tension in an external laboratory

Title:

Unnamed

Year:

2017

Report date:

2017

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

EU Method A.5 (Surface Tension)

Version / remarks:

The methods described are based on the OECD Test Guideline (1). The fundamental principles are given in reference (2). (1) OECD, Paris, 1981, Test Guideline 115, Decision of the Council C(81) 30 final. (2) R. Weissberger ed.: Technique of Organic Chemistry, Physical Methods of Organic Chemistry, 3rd ed., Interscience Publ., New York, 1959, Vol. I, Part I, Chapter XIV

Deviations:

no

Other quality assurance:

other: Certificate ISO 9001:2015

Remarks:

Measurement of surface tension was carried out in a non GLP but ISO 9001:2015 laboratory.

Type of method:

plate method

Test material

Test material information

1

Reference substance name:

Ichthammol

EC Number:

232-439-0

EC Name:

Ichthammol

Cas Number:

8029-68-3

Molecular formula:

unspecified

IUPAC Name:

Ichthammol (UVCB substance)

Test material form:

liquid: viscous

Details on test material:

sample from a batch from regular production released for use as an active pharmaceutical ingredient in medicinal products.

Results and discussion

Surface tension

Key result

Surface tension:

31.5 mN/m

Temp.:

25 °C

Conc.:

100 other: %

Remarks on result:

other: Surface tension of the test substance was measured as delivered, i.e. it was not diluted or adapted otherwise.