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EC number: 620-174-7 | CAS number: 1079184-43-2
- 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:
- 25.09.2008 to 09.03.2009
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- other: ASTM International E 1148 - 02
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- other: measurement of turbidity
- Water solubility:
- 17.6 mg/L
- Temp.:
- 19.7 °C
- pH:
- >= 1 - <= 10
- Conclusions:
- Interpretation of results: slightly soluble (0.1-100 mg/L)
In a study conducted according to Method 2 of ASTM International E 1148 - 02, the water solubility of MDEA-Esterquat C16-18 and C18 unsatd. was estimated to be 17.6 mg/L at 19.7°C based on the results of turbidity measurements. According to the classification scheme, the test substance can be regarded as slightly soluble in water. - Executive summary:
In a study conducted according to Method 2 of ASTM International E 1148 - 02, the water solubility of MDEA-Esterquat C16-18 and C18 unsatd. was estimated to be 17.6 mg/L at 19.7°C based on the results of turbidity measurements. According to the classification scheme, the test substance can be regarded as slightly soluble in water.
Reference
In a preliminary test it was found that the flask method (OECD Guideline 105:Water Solubility; 1995/EU Method A.6: Water Solubility; 2008) could not be applied for the determination of the water solubility of MDEA-Esterquat (Rewoquat V 10057) due to the formation of in-separable emulsions at concentrations above 10 mg/L at 19.7°C. Therefore, the main test was conducted using Method 2 of ASTM International E 1148 - 02. Eight suspensions of the test substance in double distilled water at target concentrations of 2.08, 5.20, 10.0, 24.7, 49.0, 100, 252, and 502 mg/L were prepared in Erlenmeyer flasks. The flasks were placed on a magnetic stirring device in a climate room at 19.7 +/- 0.5°C where the content of each solution was stirred for 72 h. After the stirring period, duplicate sub-samples were taken from the test solutions and the degree of turbidity was measured for each sample using a spectrophotometer at 700 nm. A linear relationship between response and test substance concentration was observed in the concentration range 2.08 - 502 mg/L. Since zero turbidity was not observed in any of the test solutions containing the test substance, the solubility of the test substance in water is considered equal to the intercept at the x-axis. The water solubility was estimated as 17.6 mg/L at 19.7°C.
Description of key information
17.6 mg/L at 19.7°C
Key value for chemical safety assessment
- Water solubility:
- 17.6 mg/L
- at the temperature of:
- 19.7 °C
Additional information
The water solubility of MDEA-Esterquat C16-18 and C18 unsatd. was investigated in a study conducted according to Method 2 of ASTM International E 1148 - 02.
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