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EC number: 236-291-8 | CAS number: 13282-70-7
- 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:
- 2014-09-14 to 2014-10-29
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Principles of method if other than guideline:
- This study was conducted under EPA TSCA Good Laboratory Practice Standards (40 CFR 792)
- GLP compliance:
- no
- Type of method:
- plate method
- Remarks:
- The Wilhelmy Plate method was used.
- Key result
- Surface tension:
- 0.004 mN/m
- Temp.:
- 23 °C
- Conc.:
- 90 other: % solubility limit of the substance
- Conclusions:
- Based on OECD Guideline 115, Surface Tension of Aqueous Solutions, the surface tension of a test substance was determined at 90% of the water solubility limit of the substance when this concentration is less than 1 g/L. The surface tension was 0.00388 mN/m
- Executive summary:
The values for surface tension for the test substance were determined experimentally employing measurements of surface tension at multiple concentrations of the test substance in water. The experimental data were employed to determine the critical micelle concentration. The surface tension at 90% water solubility was 38.8 dyn/cm (0.00388 mN/m).
Reference
Calculation of the Surface Tension at 90% of the Critical Micelle Concentration:
Based on OECD Guideline 115, Surface Tension of Aqueous Solutions, the surface tension of a test substance is determined at 90% of the solubility limit of the substance in water when this concentration is less than 1 g/L.
Surface tension data employed for the assessment of water solubility for the test substance are presented in the study. This data is utilized to calculate the surface tension of the test substance at 90% of the solubility limit (as wt% total active substance) in water.
The surface tension of the test substance was calculated at 90% of the water solubility of the total active substance employing the linear least squares regression line for the linear region for total active substance concentrations less than 0.0100 wt% total active substance/L (data points
1 - 7).
Data Points 1 – 7
Slope (m1) = -11.03
Intercept (b1) = 17.37
r2 = 0.86
Employing the equation for linear least squares regression line and solving for y (surface tension in dyn/cm):
y1 =m1x+b1
where,
x = log(solubility as wt% total active substance x 0.9) = log(0.0129 x 0.90)
= -1.94
y = surface tension = (-11.03 * x) + 17.37 = (-11.03 * -1.94) +17.37 = 38.8 dyn/cm
Description of key information
The values for surface tension was determined based on measurement of surface tension at multiple test substance concentrations in water to determine the Critical Micelle Concentration for the test substance. The surface tension at 90% water solubility (116.1 mg/L) was 38.8 dyn/cm (0.00388 mN/m).
Key value for chemical safety assessment
- Surface tension:
- 0.004
- in mN/m at 20°C and concentration in mg/L:
- 116.1
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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