Registration Dossier
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EC number: - | CAS number: -
Surface tension
Administrative data
Link to relevant study record(s)
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- February 5, 2021 to March 10, 2021
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- Guideline compliant study with GLP
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Version / remarks:
- 2008
- Deviations:
- no
- Type of method:
- ring method
- Specific details on test material used for the study:
- Appearance/Physical state:
solid (deliquescent)*
Batch:
209-653 (dried material from [Tradename] batch number 0001569403)
Purity:
~94.5%*
Expiry / Retest date:
03 December 2021
Storage conditions:
ambient temperature, in the dark, under nitrogen
*As the test item is a deliquescent solid and the samples used in this study were all viscous liquids, it indicates the solid had absorbed up to 10% water. The purity of the liquid samples was therefore 85.05%. - Key result
- Surface tension:
- 66 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Remarks on result:
- other:
- Conclusions:
- The surface tension of a nominally 1 g/L solution of test item in water has been determined to be 66.0 ± 0.5 mN/m at 20.0 ± 0.5 °C. The test item was considered not to be surface-active.
- Executive summary:
The determination of surface tension was carried out by a ring method based on ISO 304, using a procedure designed to be compatible with Method A.5 Surface Tension of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 115 of the OECD Guidelines for the Testing of Chemicals, 27 July 1995.
The surface tension of a nominally 1 g/L solution of test item in water has been determined to be 66.0 ± 0.5 mN/m at 20.0 ± 0.5 °C. The test item was considered not to be surface-active.
Reference
Table 1: Sample Readings
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| ||||
Age of Solution (min) | Reading (mN/m) | Temperature (°C) | Age of Solution (min) | Reading (mN/m) | Temperature (°C) |
73 | 66.0 | 20.0 | 97 | 66.0 | 20.0 |
77 | 66.0 | 20.0 | 100 | 66.0 | 20.0 |
80 | 66.0 | 20.0 | 104 | 66.0 | 20.0 |
83 | 66.0 | 20.0 | 107 | 66.0 | 20.0 |
86 | 66.0 | 20.0 | 111 | 66.0 | 20.0 |
Mean Sample 1 result: 66.0 mN/m
Mean Sample 2 result: 66.0 mN/m
Mean result: 66.0 ± 0.5 mN/m
Overall temperature: 20.0 ± 0.5 ºC
pH of Sample 1: 4.2
pH of Sample 2: 4.2
Description of key information
The surface tension of a nominally 1 g/L solution of test item in water has been determined to be 66.0 ± 0.5 mN/m at 20.0 ± 0.5 °C. The test item was considered not to be surface-active.
Key value for chemical safety assessment
- in mN/m at 20°C and concentration in mg/L:
- 66
Additional information
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