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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
![](https://echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_environmental-fate-and-pathways.png)
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:
- November 8 - December 13, 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 016
- Report date:
- 2016
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- GLP compliance:
- yes (incl. QA statement)
Test material
- Test material form:
- solid: flakes
Constituent 1
- Specific details on test material used for the study:
- SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: Mitsubishi-Kagaku Foods Corporation
- Expiration date of the lot/batch: March 27, 2018
- Purity test date: October 14, 2016
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: < 15 degrees C, protected from light
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- sewage, predominantly domestic (adaptation not specified)
- Remarks:
- 66% urban, 34% industrial
- Details on inoculum:
- - Source of inoculum/activated sludge (e.g. location, sampling depth, contamination history, procedure): San Rocco - Monza
- Storage conditions: aerobic
- Preparation of inoculum for exposure: The muds were allowed to mix and settle. They were then centrifuged, washed, and analyzed.
- Initial cell/biomass concentration: 4 mg/L - Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 20.38 g/L
- Based on:
- TOC
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- inorg. C analysis
- Details on study design:
- TEST CONDITIONS
- Composition of medium: 10 mL of a solution containing potassium dihydrogenphosphate (8.50 g/L), dipotassium hydrogenphosphate (21.75 g/L), disodium hydrogenphosphate dihydrate (33.40 g/L), ammonium chloride (0.50 g/L); 1 mL of a solution containing calcium chloride dihydrate (36.40 g/L); 1 mL of solution containing magnesium sulfate heptahydrate (22.50 g/L); and 1 mL of solution containing iron chloride (III) hexahydrate (0.25 g/L)
- Test temperature: 20 +/- 2 degrees C
- Suspended solids concentration: 4 mg/L
- Continuous darkness: yes
- Other: stirring
TEST SYSTEM
- Culturing apparatus: bottles
- Number of culture flasks/concentration: 17 (11 with test substance and reference substance)
- Measuring equipment: TOC analyzer with an infrared gas analyzer
- Test performed in closed vessels: yes
SAMPLING
- Sampling frequency: Days 0, 1, 4, 14, 21, and 28
- Sampling method: 12 hrs prior, the reaction in one bottle would be stopped with addition of 6 mL 1 M sodium hydroxide.
- Sample storage before analysis: samples were diluted with deionized water
CONTROL AND BLANK SYSTEM
- Inoculum blank: yes
- Toxicity control: yes
Reference substance
- Reference substance:
- benzoic acid, sodium salt
Results and discussion
% Degradationopen allclose all
- Parameter:
- % degradation (inorg. C analysis)
- Value:
- 6
- Sampling time:
- 1 d
- Parameter:
- % degradation (inorg. C analysis)
- Value:
- 54
- Sampling time:
- 4 d
- Key result
- Parameter:
- % degradation (inorg. C analysis)
- Value:
- 78
- Sampling time:
- 14 d
- Parameter:
- % degradation (inorg. C analysis)
- Value:
- 80
- Sampling time:
- 21 d
- Parameter:
- % degradation (inorg. C analysis)
- Value:
- 102
- Sampling time:
- 28 d
BOD5 / COD results
- Results with reference substance:
- The reference substance biodegraded 99% in 14 days. The test was therefore considered valid.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- readily biodegradable
- Conclusions:
- The substance LMDT is readily biodegradable.
- Executive summary:
LMDT was tested for biodegradability in an OECD guideline 301 test. LMDT biodegraded 78% in 14 days, and 102% degraded in 28 days. LMDT 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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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