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EC number: 235-911-4 | CAS number: 13040-19-2
- 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
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:
- 12.04.1990-10.05.1990
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Guideline study; some details are missing in documentation
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 990
- Report date:
- 1991
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 D (Ready Biodegradability: Closed Bottle Test)
- Deviations:
- no
- GLP compliance:
- not specified
Test material
- Reference substance name:
- Zinc diricinoleate
- EC Number:
- 235-911-4
- EC Name:
- Zinc diricinoleate
- Cas Number:
- 13040-19-2
- Molecular formula:
- C18H34O3.1/2Zn
- IUPAC Name:
- zinc bis(12-hydroxyoctadec-9-enoate)
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic (adaptation not specified)
- Details on inoculum:
- Origin: Bergisch Gladbach / Refrath
- Duration of test (contact time):
- 28 d
Initial test substance concentrationopen allclose all
- Initial conc.:
- 2.37 mg/L
- Based on:
- act. ingr.
- Initial conc.:
- 4.15 mg/L
- Based on:
- act. ingr.
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- O2 consumption
- Details on study design:
- A predetermined amount of the compound is dissolved in an inorganic medium (mineral nutrient solution), providing a concentration of about 2 mg/L active substance per litre. This solution is inoculated with a small number of microorganisms from a mixed population and kept in closed bottles in the dark in a constant temperature bath at 20 +/- 1 °C. The biodegradability is followed by oxygen analysis over a 28-day period. A control with inoculum, but without test material is run parallel for determination of oxygen blanks.
Two tests are carried out with test substance concentrations of 2.37 mg/L and 4.15 mg/L. Two tests are carried out with a reference substance (sodium acetate). Concentrations: 5 mg/L and 10 mg/L.
Reference substance
- Reference substance:
- acetic acid, sodium salt
Results and discussion
% Degradation
- Parameter:
- other: % BOD of COD
- Value:
- > 95
- Sampling time:
- 28 d
BOD5 / COD results
BOD5 / COD
- Parameter:
- BOD5*100/COD
- Value:
- > 95 other: %
Any other information on results incl. tables
Test 1 (2.37 mg/L)
mg O2/l after x days | ||||
0 | 5 | 15 | 28 | |
mineral nutrient solution without test material and without inoculum | 9.04 | 9.04 | 9.04 | 8.97 |
mineral nutrient solution without test material but with inoculum | 9.04 | 9.02 | 9.01 | 8.81 |
mineral nutrient solution with test material and with inoculum | 9.04 | 5.82 | 5.39 | 4.81 |
Biochemical oxygen demand
mg BOD/L after x days | ||
5 | 15 | 28 |
3.20 | 3.62 | 4.00 |
Test 2 (4.15 mg/l).
mg O2/l after x days | ||||
0 | 5 | 15 | 28 | |
mineral nutrient solution without test material and without inoculum | 9.04 | 9.04 | 9.04 | 8.97 |
mineral nutrient solution without test material but with inoculum | 9.04 | 9.02 | 9.01 | 8.81 |
mineral nutrient solution with test material and with inoculum | 9.04 | 3.24 | 2.49 | 2.01 |
Biochemical oxygen demand
mg BOD/L after x days | ||
5 | 15 | 28 |
5.78 | 6.52 | 6.80 |
Reference substance
Test 1 (5 mg/L)
mg O2/l after x days | ||||
0 | 5 | 15 | 28 | |
mineral nutrient solution without test material and without inoculum | 9.04 | 9.04 | 9.04 | 8.97 |
mineral nutrient solution without test material but with inoculum | 9.04 | 9.02 | 9.01 | 8.81 |
mineral nutrient solution with test material and with inoculum | 9.04 | 6.40 | 6.07 | 5.48 |
Biochemical oxygen demand
mg BOD/L after x days | ||
5 | 15 | 28 |
2.62 | 2.94 | 3.33 |
Test 2 (10 mg/L)
mg O2/l after x days | ||||
0 | 5 | 15 | 28 | |
mineral nutrient solution without test material and without inoculum | 9.04 | 9.04 | 9.04 | 8.97 |
mineral nutrient solution without test material but with inoculum | 9.04 | 9.02 | 9.01 | 8.81 |
mineral nutrient solution with test material and with inoculum | 9.04 | 3.47 | 2.70 | 1.47 |
Biochemical oxygen demand
mg BOD/L after x days | ||
5 | 15 | 28 |
5.55 | 6.31 | 7.33 |
Biodegradability
Test substance
% BOD of COD after x days | |||
5 | 15 | 28 | |
Conc. 2.37 mg/L | 80 | 91 | 100 |
Conc. 4.15 mg/L | 83 | 93 | 97 |
Mean | 82 | 92 | > 95 |
Reference substance
% BOD of COD after x days | |||
5 | 15 | 28 | |
Conc. 5.0 mg/L | 67 | 75 | 85 |
Conc. 10.0 mg/L | 71 | 81 | 94 |
Mean | 69 | 78 | 90 |
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- readily biodegradable
- Executive summary:
A biodegradation screening test according to OECD Guideline 301 D was carried out with zinc diricinoleate. The test concentrations used were 2.37 and 4.15 mg/L. An effluent from an activated sludge plant was used as test organism. The biological degradability of the test substance amounts to > 95 % BOD of COD after 28 days.
The 60 % level of the biodegradation was achieved in less than 10 days after passing the 10 % degradation level. Therefore the test substance is considered as readily biodegradable.
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