Orthosulfamuron

Surface tension

Link to relevant study record(s)

Reference

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

12 August 2002 to 21 September 2002

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.5 (Surface Tension)

GLP compliance:

yes

Type of method:

ring method

Specific details on test material used for the study:

IR5878 Technical grade
98.56% pure
Batch number G 009/02
white powder
stored at room temperature in the dark
Received 23 July 2002

Key result

Surface tension:

ca. 71.4 mN/m

Temp.:

22 °C

Conc.:

0.038 g/L

Conclusions:

Surface tension of IR5878 (orthosulfamuron) is 71.4 mN/m at 22°C (3.77x10-2 g/L solution). Substances having a surface tension below 60mN/m are regarded as being surface-active, the test material is therefore not considered to be a surface active material.

Executive summary:

Surface tension of IR5878 (orthosulfamuron) was determined as 71.4 mN/m at 22°C (3.77x10-2 g/L solution) using a ring method based on ISO 304, Method A5 of Commission Directive 92/69/EEC which is reference in Council Directive 91/414/EEC, Annex II as amended in Commission Directive 94/37/EC, Annex I, 2.1.4 and Method 115 of the OECD Guidelines for Testing of Chemicals, 27 July 1995. The test material is considered not to be a surface active material.

Description of key information

Surface tension of IR5878 (orthosulfamuron) is 71.4 mN/m at 22°C (3.77x10-2 g/L solution). Substances having a surface tension below 60mN/m are regarded as being surface-active, the test material is therefore not considered to be a surface active material.

Key value for chemical safety assessment

Surface tension:

71.4

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

37.7