Reaction mass of Cobaltate(3-), bis[2-[[[3-[2-[1-[[(2-chlorophenyl)amino]carbonyl]-2-(oxo-κO)propyl]diazenyl-κN1]-4-(hydroxy-κO)phenyl]sulfonyl]amino]benzoato(3-)]-, sodium (1:3) and tetrasodium bis[2-[[[3-[[1-[(2-chloroanilino)carbonyl]-2-oxopropyl]azo]-4-hydroxyphenyl]sulphonyl]amino]benzoato(3-)]cobaltate(4-)

Surface tension

Link to relevant study record(s)

Reference

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2014

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 115 (Surface Tension of Aqueous Solutions)

Deviations:

no

GLP compliance:

no

Type of method:

plate method

Specific details on test material used for the study:

FAT Number: 92368/Y
Appearance: Yellow powder

Key result

Surface tension:

50.362 mN/m

Temp.:

20 °C

Conc.:

0.25 vol%

Conclusions:

The surface tension of FAT 92368/Y was determined to be 50.362 mN/m at room temperature ca 20 °C.

Executive summary:

The determination of the surface tension of FAT 92368/Y was based on OECD Guideline No. 115: “Surface Tension of Aqueous Solutions” (1995) and on the EEC Directive 92/69, Part A, methods for the determination of physico-chemical properties, A5 “Surface Tension”, EEC Publication No. L383, December 1992. It was accomplished by means of a Tensiometer, using the Wilhelmy Platte method, which measures the force which was required to withdraw a horizontally suspended plate from the surface of the solution. Based on the findings of the study, the surface tension of FAT 92368/Y was determined to be 50.362 mN/m at room temperature ca 20 °C. The variation of specification factor was 0.008033 mN/m.

Description of key information

The determination of the surface tension of FAT 92368/Y was based on OECD Guideline No. 115: “Surface Tension of Aqueous Solutions” (1995) and on the EEC Directive 92/69, Part A, methods for the determination of physico-chemical properties, A5 “Surface Tension”, EEC Publication No. L383, December 1992. It was accomplished by means of a Tensiometer, using the Wilhelmy Platte method, which measures the force which was required to withdraw a horizontally suspended plate from the surface of the solution. Based on the findings of the study, the surface tension of FAT 92368/Y was determined to be 50.362 mN/m at room temperature of ca. 20 °C. The variation of specification factor was 0.008033 mN/m.

Key value for chemical safety assessment

Surface tension:

50.362

in mN/m at 20°C and concentration in mg/L:

2.5