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EC number: 272-964-2 | CAS number: 68921-83-5
- 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
Water solubility
Administrative data
Link to relevant study record(s)
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Experimental starting date 13 February 2017 - Experimental completion date 15 July 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- other: The critical micelle concentration (CMC) of the test item was determined based on measurement of turbidity. The method will be based on Method A2 of ASTM international E 1148 – 02 guideline.
- Version / remarks:
- The critical micelle concentration (CMC) of the test item was determined since the test item is surface active and low soluble in water.
- Deviations:
- not applicable
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- other: The critical micelle concentration (CMC) of the test item was determined based on measurement of turbidity.
- Water solubility:
- < 10 mg/L
- Conc. based on:
- test mat. (total fraction)
- Loading of aqueous phase:
- 25 mg/L
- Temp.:
- 20 °C
- pH:
- 7
- Key result
- Water solubility:
- <= 10 mg/L
- Conc. based on:
- test mat. (total fraction)
- Temp.:
- 20 °C
- pH:
- 7
- Remarks on result:
- other: This value stands for the critical micelle concentration (CMC) of Quaternium-70.
- Details on results:
- In the concentration range of 25 to 240 mg/L, a linear relationship between response and test item concentration was observed. The equation of the regression line was: Y = 0.0581 x A – 0.5849 (r = 0.998, n = 8), where Y is the turbidity measured in NTU and A is the nominal concentration of the test item.
Since zero turbidity was not observed in any of the test solutions containing test item, the intercept at the x-axis was calculated. In this way, the CMC of the test item was estimated to be ≤ 10 mg/L. - Conclusions:
- A method based on Method A2 of ASTM International E 1148 – 02 guideline was applied for the determination of the critical micelle concentration of Quaternium-70. The critical micelle concentration of the test item at 20.0 ± 0.3°C was estimated to be ≤ 10 mg/L.
Reference
Description of key information
A method based on Method A2 of ASTM International E 1148 – 02 guideline was applied for the determination of the critical micelle concentration of Quaternium-70, since the test item is surface active and low soluble in water. As zero turbidity was not observed in any of the test solutions containing test item, the intercept at the x-axis was calculated. In this way, the CMC of the test item was estimated to be ≤ 10 mg/L.
Key value for chemical safety assessment
- Water solubility:
- 10 mg/L
- at the temperature of:
- 20 °C
Additional information
Instead of water solubility, the critical micelle concentration of the test item at 20.0 ± 0.3°C was estimated to be ≤ 10 mg/L.
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