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EC number: 305-318-6 | CAS number: 94441-92-6
- 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
Biodegradation in water and sediment: simulation tests
Administrative data
Link to relevant study record(s)
Description of key information
The results of a CAS test (OECD 303A, GLP, reliability 1) demonstrate that the test substance is removed by 99.99% from the waste water in conventional biological waste water treatment plants. Chemical analysis of the test substance confirmed that removal occurred for 99.8% via biodegradation and for 0.2% via sorption to sludge. The mean organic carbon removal percentage of sodium capryliminodipropionate was 95±4%.
In accordance with column 2 (9.2.1.2) of REACH (Regulation 1907/2006/EC) Annex IX, simulation testing on biodegradation in water and sediment is not needed as the substance is readily biodegradable.
Key value for chemical safety assessment
Additional information
Discussion
The continuous activated sludge (CAS) test was performed according to ISO Guidelines, and in compliance with the OECD principles of Good LaboratoryPractice. Sodium capryliminodipropionate was exposed to micro-organisms maintained by addition of domestic wastewater in the CAS test. Sodium capryliminodipropionate was spiked at a nominal active ingredient influent concentration of 45.2 mg/L (25.7 mg/L carbon; calculated) for a period of 63 days and included a control fed with domestic wastewater only.
The mean organic carbon removal percentage of sodium capryliminodipropionate calculated over 13 measurements obtained from day 43 to 63 of the test was 95±4% (95% confidence interval). The results demonstrate that the continuous activated sludge system treating domestic wastewater spiked with sodium capryliminodipropionate removes 95 % of the organic carbon of the test substance.
An accurate assessment of the removal of sodium capryliminodipropionate was established with specific chemical analyses. The method (LC-MS/MS) for the quantification of the test substance was satisfactory with regard to the linearity, repeatability of the injections, limit of quantification (LOQ), recovery, and specificity. The mean removal percentage of sodium capryliminodipropionate in the test unit as quantified with the specific analysis from day 59 to 63 was 99.99%. These analyses demonstrate that the removal of sodium capryliminodipropionate from the wastewater is complete. Sodium capryliminodipropionate concentrations in the sludge of the reactor sampled on days 62 and 63 were 3.7 and 3.1 mg/L. The mean removal percentage of sodium capryliminodipropionate from the influent through adsorption onto sludge assessed is therefore 0.2%.This means that 99.8% removal of sodium capryliminodipropionatein the CAS test unit is achieved by biodegradation. In conclusion, the CAS test demonstrates that sodium capryliminodipropionate, is completely removed from the wastewater in conventional biological wastewater treatment plants with biodegradation as the primary removal mechanism.
In accordance with column 2 (9.2.1.2) of REACH (Regulation 1907/2006/EC) Annex IX, simulation testing on biodegradation in water and sediment is not needed as the substance is readily biodegradable.
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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