2,7-Naphthalenedisulfonic acid, 5-(acetylamino)-3-[2-[5-[[4-chloro-6-[[3-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]amino]-1,3,5-triazin-2-yl]amino]-2-sulfophenyl]diazenyl]-4-hydroxy-, sodium salt (1:4)

Surface tension

Link to relevant study record(s)

Reference

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

30 July 2018

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study with acceptable restrictions

Qualifier:

according to guideline

Guideline:

OECD Guideline 115 (Surface Tension of Aqueous Solutions)

Type of method:

ring method

Surface tension:

71.26 mN/m

Temp.:

20.5 °C

Conc.:

1.03 g/L

Conclusions:

According to OECD 115, the surface tension of test substance at 20.5ºC was determined to be 71.26 mN/m.

Executive summary:

The determination of the surface tensio of CR SR94 was performed in accordance with OECD Guideline no. 115. The surface tension of an aqueous test substance solution at a concentration of 1.03 g/L and at a temperature of 20.5 ℃ is 71.26 mN/m. Based on the criteria as outlined in the EEC guideline, CR SR94 is not surface active.

Description of key information

The surface tension of test substance at approximately 20.0°C was determined to be 71.26 mN/m.

Key value for chemical safety assessment

Surface tension:

71.26

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

1 000

Additional information

The surface tension of test substance was determined by Tensiometer using ring method.

The surface tension of approximately 1.0 g/L aqueous solution of test substance was 71.26 mN/m at 20.0°C.