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EC number: 242-893-1 | CAS number: 19223-55-3
- 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 21 May 2012 to 30 August 2012
- 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:
- EU Method A.5 (Surface Tension)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- 2012-12-15
- Type of method:
- ring method
- Key result
- Surface tension:
- > 38.2 - < 38.8 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Remarks on result:
- other: concentration expressed in acitve content
- Conclusions:
- The mean surface tension of the test item at 1 g/L in demineralized water was 38.5 ± 0.3 mN/m (corrected value).
The test item was considered as surface-active in the experimental conditions used. - Executive summary:
The surface tension of the substance EC 242-893-1 (in aqueous commercial product) was investigated in a GLP-compliant study performed in accordance with OECD Guideline 115 (Surface Tension of Aqueous Solutions) and EU Method A.5 (Surface Tension). The mean surface tension of a test item solution at 1g/L of active ingredient (corresponding to 1.28 g solid content/L) was 38.5 ± 0.3 mN/m. The test item was considered as surface-active in the experimental conditions used. The study was performed on a commercial product (aqueous solution) as the substance EC 242-893-1 is manufactured and used in a liquid form.
Reference
Results with demineralized water:
Assay N° | Temperature (°C) | Time | Surface tension (mN/m) | Results |
1 | 20,1 | To | 76,6 | 76,6 |
To + 2min | 76,6 | |||
To + 4 min | 76,6 | |||
2 | 20,4 | To | 77,2 | 77,1 |
To + 2min | 77,2 | |||
To + 4 min | 77,1 | |||
3 | 20,2 | To | 77,2 | 77,2 |
To + 2min | 77,2 | |||
To + 4 min | 77,2 |
* To corresponds to the first measurement for each assay.
Mean surface tension of water 77.0 ± 0.4 mN/m at 20.2 °C
Calibration factor: φb = (σo / σg) = 0.945
Where σo is 72.75 mN/m (surface tension of water at 20.0 °C; value given in the literature).
σg is 77.0 mN/m (measured surface tension of demineralized water at 20.2 °C).
Results with test item solution at 1g/l
Preparation of the test item solution:
A quantity of 1.391 g of test item was weighed in a 500-mL volumetric flask, and the volume was made up with demineralized water. The solution was magnetically stirred during 2 hours and 15 minutes.
Assay N° | Temperature (°C) | Time | Surface tension (mN/m) | Results | Mean corrected value suing (mN/m) | Mean corrected value according to Harkins & Jordan table (mN/m) |
State of equilibrium | ||||||
1 | 20,4 | To | 42,6 | 42,5 | 40,3 | 38,5 |
To + 2min | 42,6 | |||||
To + 4 min | 42,5 | |||||
2 | 20,3 | To | 42,6 | 42,6 | ||
To + 2min | 42,6 | |||||
To + 4 min | 42,6 | |||||
3 | 20,3 | To | 42,7 | 42,8 | ||
To + 2min | 42,7 | |||||
To + 4 min | 42,8 |
The mean value according to Harkins & Jordan table is lower than 60 mN/m, so the test item is considered to be surface active in the experimental conditions used.
Description of key information
The surface tension of the REACh substance (2-Hydroxy-3-sulphopropyl) dimethyl[3-[(1-oxododecyl) amino]propyl]ammonium hydroxide (EC 242-893-1) in aqueous solution was investigated in a GLP-compliant study (Grevin, 2012) performed in accordance with OECD Guideline 115 (Surface Tension of Aqueous Solutions) and EU Method A.5 (Surface Tension). The mean surface tension of a test item solution at 1g/L of active ingredient (corresponding to 1.28 g solid content/L) was 38.5 ± 0.3 mN/m. The test item was considered as surface-active in the experimental conditions used. The study was performed on a commercial product (aqueous solution) as the substance EC 242-893-1 is manufactured and used in a liquid form.
Key value for chemical safety assessment
- Surface tension:
- 38.5
- in mN/m at 20°C and concentration in mg/L:
- 1 280
Additional information
The surface tension of the substance EC 242-893-1 in aqueous solution was investigated in a GLP-compliant study (Grevin, 2012) performed in accordance with standard methods, without deviations. The study is considered as reliable (Klimisch 1) and was selected as key study for the endpoint.
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