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EC number: 944-892-8 | 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:
- 16th April 2018 to 29th June 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
- Deviations:
- yes
- Remarks:
- Nitrite reference item storage condition were not respected. The maximum storage temperature has been exceeded during a lenght of time upper than authorized limit.
- Qualifier:
- according to guideline
- Guideline:
- other: NF EN ISO 10304-1 F (dated July 10th, 2009)
- Deviations:
- no
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- other: NFT 90-101 adapted (dated Feb, 2001)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- Reaction mass of butyl palmitate and butyl oleate and butyl (9Z,12Z)-octadeca-9,12-dienoate and 482-680-2
- EC Number:
- 944-892-8
- Molecular formula:
- not applicable
- IUPAC Name:
- Reaction mass of butyl palmitate and butyl oleate and butyl (9Z,12Z)-octadeca-9,12-dienoate and 482-680-2
- Test material form:
- liquid: viscous
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Details on inoculum:
- Activated sludge were sampled in the wastewater treatment plant of Rouen conurbation. Activated sludge were maintained in the laboratory under aeration condition before use. The concentration of suspended matter of the activated sludge used for the study was 3.47 g/L (dry weight).
- Duration of test (contact time):
- ca. 28 d
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- O2 consumption
- Details on study design:
- A knoww quantity of test item was mixed with mineral test media and activated sludge. The preparation was agitaed for 28 days in closed vessels containing CO2 trap. O2 uptake was calculated from measurment of pressure in the cloased vessels. Biodegradation rate was calculated from O2 uptake reported to the Chemical Oxygen Demand (COD).
Test media was ventilated until a value close to saturation in air and pH stabilization were obtained. No pH adjustment was needed.
Seven bottles (610 mL) were simultaneously prepared as described below in order to have a final volume of solution (252 mL +/- 1 mL) :
- 2 with test media and inoculum (blank solutions = control),
- 2 with test media, inoculum and test item (test item solution),
- 1 with test media, inoculum and reference item (reference control),
- 1 with test media, inoculum, test item and reference item (toxicity control),
- 1 with test media, test item and sterilizing agent (abiotic control).
Each bottle contained a CO2 trap by addition of NaOH pellets. The oxygen consumption was determined by manometr, determining the reduction of pressure in the tests flasks.
The bottles were closed off with a system to measure head pressure and were stirred throughout the ready biodegradability test using a magnetic stirrer.
The test was carried out in a laboratory controlled room at 21)C +/- 1°C in the dark (temperature results were recorded on the sheet IM-0033).
The BOD (Biological Oxygen Demand) values were given by OXITOP OC 110 Controller and depending from the initial parameters (volume of bottle: 610 mL, filling volume: 252 mL +/- 1 mL).
Reference substance
- Reference substance:
- benzoic acid, sodium salt
- Remarks:
- reference item for biodegradability test
Results and discussion
% Degradation
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- >= 75 - <= 77
- Sampling time:
- 28 d
- Details on results:
- Lag phase was pass after 2.5 to 3.3 days
Percentage of biodegradability at 28 days was 75-77%.
60% biodegradation was achieved within 17-18 days after the lag phase
Validity:
- Reference control achieved the threshold level (60% of biodegradation) in 3 days (less than 14 days),
- Absolute deviation between two replicates of the test item was 2.0% after 28 days (less than 20%),
- Oxygen uptake of the control was maximum at 32.4 mg/L in 28 days (less than 60 mg/L),
- pH values were in the range 7.4-8.0 for all the conditions,
- Toxicity control showed a biodegradation rate greater than 25% occurred within 14 days, thus the test substance can be assumed to be not inhibitory,
- The abiotic control showed no significant oxygen consumtion after 28 days,
Due to the complex composition of the test item the 10 days windows is not applicable.
see section: "Any other information on results incl. tables"
BOD5 / COD results
BOD5 / COD
- Key result
- Parameter:
- COD
- Value:
- ca. 2 729 mg O2/g test mat.
- Results with reference substance:
- reference control achieved the threshold evel (60% of biodegradation) in 3 days (less than 14 days.
For the test item solutions abiotic control, BODs after 28 days were lower than in the controls. no abiotic degradation was observed.
Any other information on results incl. tables
COD Results:
Weight (mg) | Result in mg O2/g of the test item | |
Test 1 | 2.7 | 2 785 |
Test 2 | 2.7 | 2 672 |
Average | - | 2 729 |
Result in mg O2/g | Reference value | Conformity | |
Quality control | 113 | 100 +/- 18 mg/L | C |
Biodegradability testing results:
Control | Test item solution | Ref. control | Toxicity control | Abiotic control | |||
COD experimental concentration in mg O2/L | 0 | 0 | 277.0 | 274.8 | 169.3 | 460.8 | 293.5 |
Measured Biological Oxygen Demand (BOD) after 28 days (mg/L) | 3.8 | 0.0 | 210.0 | 214.0 | 160.0 | 368.0 | 0.0 |
Percentage of biodegradation:
Biodegradation rate (%) | |||||
Time (days) | Test item solution 1 | Test item solution 2 | Absolute difference | Reference control | Toxicity control |
0 | 0.0 | 0.0 | - | 0.0 | 0.0 |
1 | 0.0 | 0.0 | 0.0 | 0.0 | 2.5 |
2 | 7.9 | 2.4 | 5.5 | 47.9 | 13.9 |
3 | 13.8 | 7.6 | 6.2 | 59.7 | 23.2 |
4 | 19.7 | 12.9 | 6.8 | 66.9 | 26.7 |
5 | 22.4 | 17.0 | 5.4 | 69.2 | 29.1 |
7 | 31.0 | 25.7 | 5.3 | 78.8 | 34.8 |
10 | 38.1 | 34.4 | 3.7 | 83.0 | 41.6 |
14 | 45.9 | 43.4 | 2.5 | 85.2 | 49.5 |
21 | 60.5 | 62.4 | 1.9 | 87.7 | 63.3 |
28 | 75.1 | 77.2 | 2.0 | 93.4 | 79.5 |
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- readily biodegradable
- Conclusions:
- Ready biodegradability test of "BUTYL AVOCADATE DISTILLATED" by measurement of manometric respirometry over a 28-day period fulfils requirements of OECD guideline No. 301 F. The 60% threshold level was reached within the 17-18 days after the lag phase. Due to the complex composition of the test item the 10 days windows is not applicable.
Tests item is readly biodegradable according to the OECD criteria. - Executive summary:
Objective
The scope of this study was, in compliance with the principles of Good Laboratory Practice (GLP), to determine the ready biodegradability of "BUTYL AVOCADATE DISTILLATED" by measurement of manometric respirometryy over 28 -day period.
Method Summary
A known quantity of test item was mixed with mineral test media and activated sludge. The preparation was agitated for 28 days in closed vessels containing CO2 trap. O2 uptake was calculated from measurement of pressure in the closed vessels. biodegradation rate was calculated frol O2 uptake reported to the Chemical Oxygen Demand (COD).
Results
BUTYL AVOCADATE DISTILLATED Percentage of Biodegradation at 28 days 75 - 77% Conclusion Readily biodegradable Conclusion
Ready biodegradability test of "BUTYL AVOCADATE DISTILLATED" by measurement of manometric repirometry over a 28 -day period fulfils the requirements of OECD guideline No. 301 F. the 60% threshold level was reached within 17 -18 days after the lag phase. Due to the complex composition of the test item the 10 days windows is not applicable.
Tests item is readily biodegradable according to the OECD criteria.
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