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EC number: 701-379-1 | CAS number: -
- 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
Link to relevant study record(s)
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- from 2009-04-27 to 2009-05-28
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- The study is regarded as reliable without restrctions because it was conducted in accordance with GLP regulation and guideline.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Version / remarks:
- 440/2008/EC; 31 May 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- July 1995
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
- Key result
- Surface tension:
- 72.7 mN/m
- Temp.:
- 20 °C
- Conc.:
- 32.8 other: mg/500 mL
- Conclusions:
- The surface tension of the test item aqueous solution was found to be 72.7 mN/m at 20 °C, using the ring method. As this value is higher than 60 mN/m, teh test item is not classified as surface active.
- Executive summary:
The surface tension of the test item (aqueous solution) was determined according to OECD 115 and EU Method A.5, resulting in 72.7 mN/m at 20 °C, using the ring method. As this value is higher than 60 mN/m, the test item is not classified as surface active.
Reference
Result
In order to describe the time dependence of the surface tension, after transferring the solution to the measurement vessel, repeated measurements were carried out, with increasing the equilibrium time. A constant surface tension was reached after about 110 sec (see Table 1).
The surface tension of the test item aqueous solution (32.8 mg / 500 ml) was found to be 72.7 mN/m at 20 °C using the ring method, representing the mean of five separate measurements. The equilibrium time for these five measurements was in a range of 110 - 112 sec. The details are shown in Table 2.
The measured surface tension was multiplied by phia and than corrected according to Harkins and Jordan by 0 mN/m, resulting in a corrected surface tension of 72.7 mN/m.
As this value is higher than 60 mN/m, the test item is not classified as surface active.
Table 1: Time dependence of the surface tension after transferring the solution to the measurement vessel
Surface tension (mN/m) |
Equilibrium time (sec) |
15 |
16 |
36 |
33 |
44 |
47 |
59 |
60 |
72.4 |
100 |
72.5 |
110 |
Equilibrium time = time after transferring the solution to the vessel until measuring the surface tension of the solution
Table 2: Measured surface tension values and equilibrium times
Surface tension (mN/m) |
Equilibrium time (sec) |
72.5 |
110 |
72.9 |
111 |
72.7 |
110 |
72.5 |
112 |
72.7 |
110 |
Equilibrium time = time after transferring the solution to the vessel until measuring the surface tension of the solution
Description of key information
The surface tension of the test item (aqueous solution) was determined according to EU Method A.5, resulting in 72.7 mN/m at 20 °C.
Key value for chemical safety assessment
- Surface tension:
- 72.7
- in mN/m at 20°C and concentration in mg/L:
- 16.4
Additional information
The surface tension of the test item (aqueous solution) was determined according to OECD 115 and EU Method A.5, resulting in 72.7 mN/m at 20 °C, using the ring method. As this value is higher than 60 mN/m, the test item is not classified as surface active.
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