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Diss Factsheets
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EC number: - | 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
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- May 2021
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- No claim of GLP A leak was encountered in one of the vessels so the study should be treated with caution.
- Justification for type of information:
- Information derived from R&D process and deemed reliable
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 021
- Report date:
- 2021
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- GLP compliance:
- no
- Remarks:
- This study experience methodological definciencies
Test material
- Reference substance name:
- Sophorolipids: fermentation products of glucose and fatty acids, C18 (unsaturated), glycerol esters with yeast Starmerella Bombicola
- IUPAC Name:
- Sophorolipids: fermentation products of glucose and fatty acids, C18 (unsaturated), glycerol esters with yeast Starmerella Bombicola
- Test material form:
- liquid
- Details on test material:
- Batch release
Constituent 1
- Specific details on test material used for the study:
- Name HoneySurf LF
Batch no. H20310-02
Expiry date 30. Nov. 2021
Study design
- Oxygen conditions:
- aerobic
- Remarks:
- The test vessels were aerated with purified (by activated charcoal), CO2-scrubbed, moistened air. The scrubbing of carbon dioxide was achieved by bubbling the purified air through a flask containing 1.5 M NaOH. To control the absence of CO2, the air was t
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Details on inoculum:
- Activated sludge from a biologic sewage treatment plant was used. The chosen plant is treating mostly domestic sewage.
The sludge was taken from the activation basin of the ESN (Stadtentsorgung Neustadt) sewage treatment plant, Im Altenschemel, 67435 NW-L
The sludge was filtrated, washed with test medium (2x) and resuspended in test medium. It was then aerated until use. The dry matter was determined with 3.50 g suspended solids/L. - Duration of test (contact time):
- 28 d
Initial test substance concentrationopen allclose all
- Initial conc.:
- 20.1 mg/L
- Based on:
- COD
- Remarks:
- Test 2
- Initial conc.:
- 20.7 mg/L
- Based on:
- COD
- Remarks:
- Test 1
- Initial conc.:
- 51.1 mg/L
- Based on:
- test mat.
- Remarks:
- Test 2
- Initial conc.:
- 52.6 mg/L
- Based on:
- test mat.
- Remarks:
- Test 1
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- CO2 evolution
- Details on study design:
- 2000 mL-SCHOTT-flasks were used as test vessels, 100 mL scrubber flasks as absorbent
vessels.
The medium was prepared from the stock solutions. The stock solution of the positive control
was prepared and its organic carbon was measured. The inoculum was taken from its
source, washed, aerated and the dry matter was determined.
The test vessels were filled with medium and inoculum. Then all flasks were aerated for
72 hours with purified, CO2-free, moistened air to purge the system of CO2.
Flask volume 1500 mL
Apparatus blanks 2, containing mineral medium only
Controls 2, containing mineral medium and inoculum
Positive control flasks 2, containing positive control, mineral medium and inoculum
Test flasks 2, containing test item, mineral medium and inoculum
Abiotic control 1, containing test item, mineral medium and HgCl2
Toxicity control 1, containing test item, positive control, mineral medium and inoculum
Inoculum concentration: 25.0 mg/L
Temperature 19.4 – 21.9 °C without direct lighting
Duration 28 days
The test was performed with a nominal start concentration of 20 mg organic carbon/L.
From each front scrubber flask, 10 samples were taken in order to determine the emitted
CO2. (on days 0, 2, 4, 7, 9, 11, 14, 18, 23 and 29). The sample volume was 1 mL. The
resulting change in the volume of the front flask was considered in the calculation of emitted
CO2 (see also chapter 3.2.1).
On day 28, 5 mL HCl 2 M. were added to each test flask in order to drive off dissolved CO2.
On day 29, samples from both scrubber flasks were taken.
Reference substance
- Reference substance:
- aniline
Results and discussion
% Degradation
- Key result
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 69.2
- Sampling time:
- 28 d
BOD5 / COD results
- Results with reference substance:
- 81.1 % on day 14
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Remarks:
- NB leak on one vessel line, treat results with some degree of caution
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