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Diss Factsheets
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EC number: 947-623-2 | 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:
- other: experimental result obtained on one of the main constituents
- Adequacy of study:
- key study
- Study period:
- 01-06.12.2017
- 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)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- OECD harmonised ring method
- Key result
- Surface tension:
- 48.45 mN/m
- Temp.:
- 20 °C
- Conc.:
- 90 vol%
- Conclusions:
- The surface tension of a 90% saturated aqueous solution of the test item 4-(1-phenylethyl)phenol was determined to be 48.45 mN/m (SD +/- 0.05 mN/m) at 20°C.
- Executive summary:
The test was performed to determine the surface tension of an aqueous solution with a concentration of 90% of the saturation concentration of the test item 4-(1-phenylethyl)phenol via tensiometer using the OECD-harmonised ring method. The study was performed according to OECD TG 115, EU Method A.5 and in compliance to GLP.
The density of the test solution was determined in a preliminary measurement via the buoyancy method to be 1.004 g/cm3 (20.0°C).
The temperature of the test solution during the whole series of measurements was between 19.9 and 20.0°C, and the validity criteria for the test were fulfilled.
The determination was carried out with a tensiometer in ten successive measurements (SD ≤ 0.05 mN/m).
The surface tension of a 90% saturated aqueous solution of the test item was determined to be 48.45 mN/m (SD +/- 0.05 mN/m) at 20°C.
Considering that distilled water has a surface tension of 72.75 mN/m at 20°C and the test item showed a surface tension below 60 mN/m under the conditions of this test method, the test item should be regarded as being surface-active material.
Reference
Determination of the density
The buoyancy method yielded a density of the test solution of 1.004 g/cm3 at 20.0°C. The density was used for the correction method of Harkins and Jordan in the determination of the surface tension.
Temperature
The temperature of the test solution during the whole series of measurements was between 19.9 and 20.0°C.
Time line of the surface tension determination
Start of measurement was 27.1 minutes after transfer of the test solution into the vessel. After that time, 15.2 minutes were needed to reach equilibrium at which 10 successive measurements were successfully achieved with a standard deviation of <= 0.05 mN/m.
Surface tension of the test item
Measurement No. 1) | Time 2) (min) | Time 3) (min) | Surface Tension (mN/m) | Temperature (°C) |
1 | 36.13 | 9.01 | 48.39 | 20.0 |
2 | 36.83 | 9.71 | 48.41 | 20.0 |
3 | 37.54 | 10.42 | 48.41 | 20.0 |
4 | 38.25 | 11.13 | 48.44 | 20.0 |
5 | 38.96 | 11.84 | 48.44 | 20.0 |
6 | 39.65 | 12.53 | 48.44 | 20.0 |
7 | 40.33 | 13.21 | 48.49 | 20.0 |
8 | 40.98 | 13.86 | 48.50 | 20.0 |
9 | 41.75 | 14.64 | 48.51 | 20.0 |
10 | 42.41 | 15.29 | 48.52 | 20.0 |
Mean | - | - | 48.45 | 20.0 |
SD (+/-) | - | - | 0.05 | 0.0 |
SD = standard deviation
1) of the last 10 measurements
2) Time from transfer of the test solution into test vessel until end of each measurement
3) Time start of measurement until end of each measurement
Description of key information
The surface tension of 4-monostyryl phenol (4-MSP) was determined by means of a tensiometer using the OECD-harmonized ring method in accordance with OECD Guidance 115 and EU method A.5.
The surface tension of a 90% saturated aqueous solution of the test item was determined to be 48.45 mN/m (SD +/- 0.05 mN/m) at 20°C. As the surface tension value is below the threshold of 60 mN/m under the conditions of this test method, the test item should be regarded as having
some surface-active potential.
Key value for chemical safety assessment
- Surface tension:
- 48.45
Additional information
The surface tension was tested only on the 4-MSP isomer. This isomer represents the “worst-case” scenario with regard to the surface activity, as in this chemical structure, the steric split between the hydrophopic part (the styryl group) and the hydrophilic moiety (the hydroxyl group) is at maximum.
The measured surface tension value for 4 -MSP is 48.45 mN/m, which indicates that the substance has some surface active potential. It is however to be noted that the chemical structure of 4MSP is not characteristic of a ‘true surfactant’. This is reflected in the obtained value for surface tension, which is still rather high when compared to that of ‘true surfactants’, which typically yield surface tension values around 26-28 mN/m.
As the steric split in 2-MSP is less explicit, it is reasonable to assume that 2MSP has even less potential for surface active behavior, and thus would yield a higher surface tension value.
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