Reaction products of diazotised 2-amino-4-nitrophenol, subsequently coupled with 7-Anilino-4-hydroxy-2-naphthalenesulfonic acid, further mixed with Chromium, [3-(hydroxy-κO)-4-[2-[2-(hydroxy-κO)-1-naphthalenyl]diazenyl-κN1]-7-nitro-1-naphthalenesulfonato(3-)]-, sodium salts

Surface tension

Administrative data

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

10/31/2018

Reliability:

1 (reliable without restriction)

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2018

Report date:

2018

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 115 (Surface Tension of Aqueous Solutions)

Version / remarks:

27 July 1995

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method A.5 (Surface Tension)

Version / remarks:

30 May 2008

GLP compliance:

no

Type of method:

ring method

Test material

Test material information

Constituent 1

Test material form:

solid: particulate/powder

Results and discussion

Surface tension

Key result

Surface tension:

46.1 mN/m

Temp.:

20 °C

Conc.:

1 g/L

Applicant's summary and conclusion

Conclusions:

Surface tension (at 20 °C): 46.1 mN/m (at 1.0 g/l)
The test item is surface active.