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EC number: 619-447-3 | CAS number: 99607-70-2
- 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
Link to relevant study record(s)
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1992-04-29 - 1992-04-29 (experimental phase)
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: ISO Standard 304 ("Surface active agents - Determination of Surface Tension by Drawing up Liquid Films")
- Deviations:
- no
- Principles of method if other than guideline:
- As an alternative to the ring method, which has been primarily suggested by OECD TG 115 (original guideline, adopted 1981), the Wilhelmy plate method was preferred by the test lab because it allows a better assessment of the time dependence of the surface tension, if present. A comparison (contained in the study report) of the surface tension values of four calibrating liquids, measured with the equipment (of the test lab) using the Wilhelmy plate, with reference values from OECD TG 115 and ISO Standard 304 showed differences of less than 0.2 mN/m.
- GLP compliance:
- yes
- Type of method:
- plate method
- Surface tension:
- 57.2 mN/m
- Temp.:
- 20 °C
- Conc.:
- 0.59 mg/L
- Remarks on result:
- other: experiment 1; the given concentration of the filtrated suspensions is an estimated value, based on the reported water solubility at 25°C
- Surface tension:
- 56.8 mN/m
- Temp.:
- 20 °C
- Conc.:
- 0.59 mg/L
- Remarks on result:
- other: experiment 2; the given concentration of the filtrated suspensions is an estimated value, based on the reported water solubility at 25°C
- Surface tension:
- 57
- Temp.:
- 20 °C
- Conc.:
- 0.59 mg/L
- Remarks on result:
- other: average of both experiments; the given concentration of the filtrated suspensions is an estimated value, based on the reported water solubility at 25°C
- Conclusions:
- The study is considered to be adequate and reliable.
- Executive summary:
The surface tension of a saturated aqueous solution at 20°C was determined with the Wilhemy plate method as 57 mN/m. The corresponding concentration of the substance is estimated to be approximately 0.59 mg/L.
Reference
No time dependence of the surface tension was observed.
Remark of the registrant: The surface tension at 20 °C was measured with saturated aqueous solutions of technical grade substance (Wilhelmy plate method). These solution were prepared by shaking of 10 g/L suspensions and subsequent filtration. The corresponding concentrations have not been determined. In another report (see IUCLID section 4.8, Rodler) the solubility of pure grade substance in pure water at 25 °C was measured as 0.59 mg/L. This reported water solubility (different temperature and different purity) is taken as an approximate estimate for the concentrations used for the surface tension determinations.
For comparison: pure water has a surface tension at 20 °C of 72.75 mN/m.
Description of key information
Surface tension (Ryser, Wilhelmy plate method, saturated solution, 20 °C): 57 mN/m
Key value for chemical safety assessment
- Surface tension:
- 57
- in mN/m at 20°C and concentration in mg/L:
- 0.59
Additional information
Surface tension has been measured in one study. The result is considered to be reliable and adequate, and is carried forward for use in risk assessment, classification and labelling. The given concentration of the saturated solution is an approximate estimate, based on the reported water solubility.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.