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EC number: 948-071-5 | 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:
- 22 September 2017 to 27 September 2018
- 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:
- yes
- Remarks:
- Due to difficulty in obtaining a reliable aqueous solubility result, an investigation into the formation of micelles was made as part of the aqueous solubility investigation.
- Principles of method if other than guideline:
- The critical micelle concentration was determined as described below.
The experimental procedure followed that described in EC Directive 92/69/EEC Method A5 and OECD Guideline 115.
Aliquots of test substance (1.08, 10.15 and 100.18 mg) were weighed into each of three 100 mL glass screw topped bottles and double-distilled water (100 mL) added to each one, the concentrations rounded to 10, 100 and 1000 µg/mL. A stirrer was added and the solutions were stirred at room temperature for 2 days. Periodic turbidity measurements were made during this time, the sample being returned to the bottle.
After two days stirring the surface tension was measured on all three samples and on the following dilutions of the 1000 µg/mL: 100, 200, 300, 400, 500, 600, 700, 800 and 900 µg/mL. The test was performed at 20°C using a torsion balance with a 6.366mm diameter platinum ring. Each test was repeated until five consecutive measurements were made.
The apparatus, a Surface Tension Torsion Balance, employing the ring method was calibrated using distilled water to determine a calibration factor, F, which is derived as follows:
F = (σL / σM)
where:
σL = the value given in the literature for the surface tension of water (72.5 mN/m) at 20°C
σM = the measured value of the surface tension of water (mN/m) at 20°C - GLP compliance:
- yes (incl. QA statement)
- Type of method:
- ring method
- Specific details on test material used for the study:
- - Purity: >98 % This substance has an Unknown or Variable composition, is a Complex reaction product, or a Biological material (UVCB), therefore purity was taken to be 100 %
- Description: Yellow liquid - Key result
- Surface tension:
- 0 other: Could not be determined
- Temp.:
- 20 °C
- Conc.:
- 513 µg/L
- Remarks on result:
- other: based on critical micelle concentration
- Conclusions:
- The surface tension at 90% saturated, or at 1g/L, could not be ascertained. The surface tension value is 513 µg/mL, based on critical micelle concentration.
- Executive summary:
The surface tension of the test substance was investigated in a study performed to the standardized guideline OED 115 under GLP conditions. Due to difficulty in obtaining a reliable aqueous solubility result, an investigation into the formation of micelles was made as part of the aqueous solubility investigation. The surface tension at 90% saturated, or at 1g/L, could not be ascertained. The surface tension value is 513 µg/mL, based on critical micelle concentration.
Reference
Mean surface tension results were first multiplied by the calibration factor and then the Harkins Jordan correction factor as described under the Surface Tension – Critical Micelle Concentration section above and the final corrected mean surface tension values were then plotted against solution concentration to determine the critical micelle concentration.
Description of key information
The surface tension of the test substance was investigated in a study performed to the standardized guideline OED 115 under GLP conditions. Due to difficulty in obtaining a reliable aqueous solubility result, an investigation into the formation of micelles was made as part of the aqueous solubility investigation. The surface tension at 90% saturated, or at 1g/L, could not be ascertained. The surface tension value is 513 µg/mL, based on critical micelle concentration.
Key value for chemical safety assessment
Additional information
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.
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