Registration Dossier
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EC number: 201-335-7 | CAS number: 81-23-2
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data

Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to
- Guideline:
- EU Method A.5 (Surface Tension)
- Qualifier:
- according to
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- GLP compliance:
- yes
- Type of method:
- ring method
Test material
Reference
- Name:
- Unnamed
- Type:
- Constituent
- Test material form:
- solid: crystalline
- Specific details on test material used for the study:
- Batch number: 2016110462
Results and discussion
Surface tension
- Surface tension:
- 56.9 mN/m
- Temp.:
- 20 °C
- Conc.:
- 63 mg/L
Any other information on results incl. tables
Results
Data in the tables are rounded values taken from Excel spreadsheets which will be archived together with the raw data. The use of Excel spreadsheets for calculations produces more accurate endpoints. These endpoints may slightly differ from the values derived by replacing the rounded values in the formulae given in the methods section.
After zero point adjustment, the distilled water surface tension (sg) was determined to be 68.91; therefore the calibration factor was calculated to beFb = 1.0558.
A saturated aqueous solution was prepared weighing 10.12 g of the test item into a 250 mL conical flask, adding 100 mL of water and stirring the suspension overnight.
To obtain a 90% saturated solution (to be tested according to the method’s indications), 90 mL of the previously prepared suspension, filtered by paper filter at 0.45mm, were mixed with 10 mL of water. This clear solution was placed into a 45 mm diameter clean cylindrical glass vessel and the apparatus adjusted to zero.
The solution density has not been measured but, taking into consideration the test item water solubility, the distilled water density value has been used.
Six measurements were performed at 20 ± 0.5°C maintained through a thermostatic liquid bath with external circulation.
Table2 Surface tension at 20°C
Measurements | Test item 90% saturation (mN/m) |
1st | 53.9 |
2nd | 53.9 |
3rd | 53.9 |
4th | 53.9 |
5th | 53.7 |
6th | 53.9 |
Average value | 53.9 |
S.D. | 0.09 |
RSD% | 0.16% |
Fb | 1.0558 |
Corrected value | 56.9 |
Applicant's summary and conclusion
- Conclusions:
- Surface tension of the substance is 56.9 mN/m (surface-active material).
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