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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
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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.
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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