Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Surface tension

Currently viewing:

Administrative data

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.