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EC number: 239-032-7 | CAS number: 14960-06-6
- 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: screening tests
Administrative data
Link to relevant study record(s)
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 E (Ready biodegradability: Modified OECD Screening Test)
- GLP compliance:
- no
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Details on inoculum:
- The test was inoculated with effluent of the sewage treatment plant Hochdahl (1 mL/L). The effluent from the sewage treatment plant predominantly treating domestic sewage was filtered through a coarse paper filter, the first 200 mL being discarded.
- Duration of test (contact time):
- 28 d
- Initial conc.:
- 10 mg/L
- Based on:
- DOC
- Initial conc.:
- 5 mg/L
- Based on:
- DOC
- Parameter followed for biodegradation estimation:
- DOC removal
- Details on study design:
- Stock solutions (i.e. 1000 mg/L) of the test substance and reference were prepared and calculated aliquots were added to the final test solutions. The final concentration of test substance was => 5 respectively 10 mg/L DOC. The final concentration of the reference was => 10 mg/L DOC.
- Reference substance:
- other: sodium benzoate
- Key result
- Parameter:
- % degradation (DOC removal)
- Value:
- 98
- Sampling time:
- 28 d
- Details on results:
- Results are tabulated in 'Any other information on results incl. tables'.
- Results with reference substance:
- Results of the reference substance are tabulaten in 'Any other information on results incl. tables'
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- readily biodegradable
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 2007-01-24 to 2001-03-07
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- other: DIN 38414 part 8
- Deviations:
- yes
- Principles of method if other than guideline:
- a defined amount of test substance was added to the inoculum. The biodegradability was measured by comparing the inoculum control with the inoculum containing the test substance.
- GLP compliance:
- no
- Specific details on test material used for the study:
- SOURCE OF TEST MATERIAL
- Name of test item (as cited by study report): Sodium-N-lauryl-ß-iminodipropionate, Deriphat 160 C
- Physical state: Yellowish liquid
- Analytical purity: 30% active substance
- Lot/batch No.: S65250007
- Expiration date of the lot/batch: 2007-09-01
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: At room temperature - Oxygen conditions:
- anaerobic
- Inoculum or test system:
- anaerobic sludge
- Details on inoculum:
- - Source of inoculum/activated sludge: STP Düsseldorf, Germany
- Method of cultivation: Predominantly digested sludge (89%, approx. 27 days of age) mixed with activated aerobic sludge (11%) - Duration of test (contact time):
- 41 d
- Initial conc.:
- 2 g/L
- Based on:
- test mat.
- Parameter followed for biodegradation estimation:
- other: digester gas evolution (CH4 and CO2)
- Details on study design:
- TEST CONDITIONS
- Test temperature: 35 ± 1°C
- pH: 7.3 to 7.6
TEST SYSTEM
- Number of culture flasks/concentration: 2
SAMPLING
- Sampling frequency: Daily
CONTROL AND BLANK SYSTEM
- Inoculum blank: 2 - Parameter:
- other: digester gas evolution (CH4 and CO2)
- Value:
- 0
- Sampling time:
- 41 d
- Interpretation of results:
- under test conditions no biodegradation observed
Referenceopen allclose all
Table: DOC removal of test substance
Day |
% DOC removal 5 mg DOC |
% DOC removal 10 mg DOC |
7 |
55 |
51 |
14 |
98 |
98 |
21 |
95 |
98 |
28 |
95 |
98 |
Table: Reference (soodium benzoate)
Day |
% DOC removal |
7 |
96 |
14 |
98 |
21 |
100 |
28 |
98 |
Description of key information
Readily biodegradable (according to OECD criteria).
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
The biodegradation potential of the substance in water was determined in a non-GLP screening study according to OECD TG 301 E (DOC Removal Test) (Henkel KGaA, 2006). In this study 5 and 10 mg/L test substance (expressed as DOC) was inoculated with non-adapted activated sludge from a domestic sewage treatment plant for 28 days under aerobic conditions in the dark. After the 28-day incubation period the substance was biodegraded almost completely (98%). The 10-day window criterion was met. Based on these findings, the substance is classified as readily biodegradable.
As supporting information, the biodegradation potential of the test substance in water under anaerobic conditions was determined in a non-GLP study according to DIN 38414-8 (Chemisch-biologische Laboratorien, 2007). In this study, 2 g/L test substance was inoculated with anaerobic sludge (predominantly digested sludge mixed with activated aerobic sludge) for 41 days. Digester gas evolution (CH4 and CO2) was measured daily as a parameter for biodegradation estimation. After the 41 -day incubation period, no biodegradation was observed (0%). Therefore, the substance was classified as not biodegradable under anaerobic test conditions.
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