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EC number: 947-766-0 | 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

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:
- From October 27, 2016 to July 03, 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- other: OECD 115
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: UNE 55-50
- Deviations:
- no
- GLP compliance:
- not specified
- Type of method:
- other: Tensiometer Kruss Standard plate method
- Key result
- Water solubility:
- 4.8 mg/L
- Conc. based on:
- test mat.
- Temp.:
- 25 °C
- Remarks on result:
- other: Critical micelle concentration
- Conclusions:
- Under the study conditions, the the CMC or water solubility of the test substance was determined to be 4.8 mg/L at 25°C.
- Executive summary:
A study was conducted to determined the water solubility of the test substance, Quaternary ammonium compounds, N,N,N'-tris(hydroxyethyl)-N,N'-dimethyl-N'-tallow alkyltrimethylenedi-, bis(Me sulfates) (salts), based on critical micelle concentration (CMC), according to the OECD Guideline 115 and EU Method A.5. Due to the surface activity of the test substance, the CMC value was considered as a water soluibility equivalent in accordance with the ECHA R.7a Guidance. Under study conditions, the CMC of the test substance was determined to be 4.8 mg/L at 25˚C (Carrillo, 2017).
Reference
Results: The intercept of the regression lines at stable surface tension and the line representing the lineal decrease of Surface tension is considered to represent the Critical Micelle Concentration (CMC).
The Critical Micelle Concentration is therefore estimated as 4.8 mg/l (refere attached background material for CMC graph).
C (ppm) | ST mN/m | log C |
1.16 | 39.1 | 0.065 |
2.21 | 34.3 | 0.344 |
5.1 | 31.3 | 0.708 |
10.37 | 31.7 | 1.016 |
15.5 | 32.4 | 1.19 |
20.48 | 32.3 | 1.311 |
40.99 | 32.9 | 1.613 |
Description of key information
The water solubility was determined based on critical micelle concentration (a water solubility equivalent of surfactant), according to OECD Guideline 115 and EU Method A.5 (Carrillo, 2017).
Key value for chemical safety assessment
- Water solubility:
- 4.8 mg/L
- at the temperature of:
- 25 °C
Additional information
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