Toluene-4-sulphonamide

Surface tension

Link to relevant study record(s)

Reference

Endpoint:

surface tension

Type of information:

experimental study

Adequacy of study:

key study

Study period:

05 january 2017 - 09 january 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Justification for type of information:

The OECD harmonized ring method was applied for the determination of the surface tension of p-toluenesulfonamide (PTSA). The surface tension of a test solution at a concentration of 1g/L and at 20 Degrees Celcius was 69.5 mN/m. According to this, the test item is considered not to be surface active.

Qualifier:

according to guideline

Guideline:

OECD Guideline 115 (Surface Tension of Aqueous Solutions)

Qualifier:

according to guideline

Guideline:

EU Method A.5 (Surface Tension)

GLP compliance:

yes (incl. QA statement)

Type of method:

OECD harmonised ring method

Specific details on test material used for the study:

Test item 200961/B named: p-toluenesulfonamide (PTSA) which had an appearance as a white crystalline powder. The characterization of the test item supplied by the sponsor was conducted in an ISO 9001 environment.

Key result

Surface tension:

69.5 mN/m

Temp.:

20 °C

Conc.:

1 g/L

		surface tension [mN/m]
Measurement	Time passed after transfer calibration solution to test vessel [min]	individual	mean
1	14	73.3
2	15	74.5
3	16	74.0	74.12
4	17	74.2
5	18	74.1
6	19	74.0
7	20	74.3

Conclusions:

The surface tension of p-toluene sulfonamide is 69.5 mN/m at a concentration of 1g/l and 20ºC.

Executive summary:

The test item p-toluenesulfonamide has a surface tension of 69.5 mN/m at a concentration of 1 g/l and 20ºC according to the EC Guideline A.5 and OECD Guideline 115 .

Description of key information

The OECD harmonized ring method was applied for the determination of the surface tension of p-toluenesulfonamide (PTSA). The surface tension of a test solution at a concentration of 1g/L and at 20 Degrees Celcius was 69.5 mN/m. According to this, the test item is considered not to be surface active.

Key value for chemical safety assessment

Surface tension:

69.5

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

1 000

Additional information

The OECD harmonized ring method was applied for the determination of the surface tension of p-toluenesulfonamide (PTSA). The surface tension of a test solution at a concentration of 1g/L and at 20 Degrees Celcius was 69.5 mN/m. According to this, the test item is considered not to be surface active.