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EC number: 284-366-9 | CAS number: 84852-53-9
- 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
Link to relevant study record(s)
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Oct 17, 1990 to Jan 10, 1991
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: study performed using international guidelines under GLPs using commercial material as test article and published.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
- Deviations:
- no
- GLP compliance:
- yes
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Details on inoculum:
- 300 ml of basal culture medium to which innoculum added so that suspended solid reached 30 mg/L
- Duration of test (contact time):
- 28 d
- Initial conc.:
- 100 mg/L
- Based on:
- test mat.
- Parameter followed for biodegradation estimation:
- O2 consumption
- Parameter followed for biodegradation estimation:
- test mat. analysis
- Details on study design:
- Water + test substance; Sludge + test substance; Sludge + test substance; Sludge + test substance; Sludge + aniline; Control Blank.
Test substance = 100 mg/L. Aniline = 100 mg/L. Activated sludge = 30 mg/L. Temperature 25 +- 1 degree C. Duration 28 d. Measured BOD at 7, 14, 21 and 28 days after innoculation. After incubation, weighed samples and evaluated IR spectrum. - Reference substance:
- aniline
- Test performance:
- Aniline was degraded 63, 81, 84 and 85% by days 7, 14, 21, and 28, respectively.
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- 0
- Sampling time:
- 28 d
- Key result
- Parameter:
- % degradation (test mat. analysis)
- Value:
- 2
- Sampling time:
- 28 d
- Details on results:
- Appearance of Test Media
Day 0 Water + test substance : Test substance not dissolved.
Day 0 Sludge + test substance: Test substance not dissolved.
Day 28 Water + test substance: Test substance remained insoluable.
Dau 28 Sludge + test substance: Test substance remained insoluable. No growth of sludge observed
% Biodegradation
Method Percentage biodegradation (%)
Test Vessel 1 Test Vessel 2 Test Vessel 3 Mean
BOD 1 0 0 0
Weight 6 0 1 2
- Results with reference substance:
- Aniline was degraded 63, 81, 84 and 85% by days 7, 14, 21, and 28, respectively. The control blank performed as expected. No degradation was seen in the water + test substance vessel.
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- under test conditions no biodegradation observed
- Conclusions:
- DBDPEthane was not readily biodegradable by activated sewage sludge over a 28-day period when tested under Japanese MITI/OECD Ready Biodegradability 301C Modified MITI guidelines. IR spectra indicated the test substance was unchanged.
- Executive summary:
DBDPEthane was not readily biodegradable by activated sewage sludge over a 28-day period when tested under Japanese MITI/OECD Ready Biodegradability 301C Modified MITI guidelines. IR spectra indicated the test substance was unchanged.
Reference
Table 1. Calculation Table on the Degree of Biodegradation by BOD
Test No. 11893. Duration of cultivation: 28 days |
|||||||||
Vessel No. |
Day 7 |
Day 14 |
Day 21 |
Day 28 |
Mean Degr. (%) |
||||
BOD (5) |
Degr. (%) |
BOD (5) |
Degr. (%) |
BOD (5) |
Degr. (%) |
BOD (5) |
Degr. (%) |
||
1 |
58.0 |
63 |
74.9 |
81 |
79.2 |
87 |
81.2 |
85 |
|
2 |
0.8 |
- |
1.4 |
- |
2.9 |
- |
4.1 |
- |
|
4 |
0.8 |
0 |
1.2 |
0 |
2.5 |
0 |
4.2 |
1 |
0 |
5 |
0.4 |
0 |
0.8 |
0 |
1.9 |
0 |
3.2 |
0 |
|
6 |
0.0 |
0 |
0.0 |
0 |
1.4 |
0 |
2.9 |
0 |
|
3 |
0.0 |
- |
0.0 |
- |
0.0 |
- |
0.0 |
- |
|
Degr. : Degree of biodegradation Vessel No. 1: Sludge + Aniline Vessel No. 2: Control blank (B) Vessels No. 4,5,6: Sludge + Test substance Vessel No. 3: Water + Test Substance
Test substance added: 30 mg Degr. = (BOD-B)/(TOD) × 100%
TOD of test substance: 14.7 mg C14H4Br10+ 15 O2 --> 14 CO2+ 2 H2O + 10 Br 15 O2/ C14H4Br10 = 479.98/971.23 = 0.49 TOD = 30.0 × 0.49 = 14.7 mg
TOD of aniline: 90.3 mg C6H7N + 8.75 O2 -- > 6 CO2+ 3.5 H2O + NO2 8.75 O2/ C6H7N = 279.99/93.13 = 3.01 TOD = 30.0 × 3.01 = 90.3 mg
|
Table 2. Calculation Table for Percentage Biodegradation
Test No. 11893 |
|||||
Vessel No. |
Sample description |
A (mg) |
D (mg) |
E (%) |
F (%) |
3 |
Water + Test Substance |
28.7 |
29.8 |
|
|
4 |
Sludge + Test Substance |
32.0 |
28.2 |
6 |
|
5 |
Sludge + Test Substance |
34.5 |
30.8 |
0 |
2 |
6 |
Sludge + Test Substance |
33.2 |
29.4 |
1 |
|
2 |
Control blank |
4.9 |
|
|
|
Amount of test substance added: 30 mg A: Amount of residue (mg) B: Ratio of portion used for analysis: Water (300/300), Sludge (300/300) C: Recovery rat: Water (96.2%), Sludge (96.2%) D: Residual amount of test substance (mg) Water: D=A/B/(C/100) Sludge: D=(A-A(Control blank))/B/(C/100) E: Percentage biodegradation (%) E=(D(Water+ Test Substance)-D(Sludge + Test Substance))/D(Water + Test Substance) × 100 F: Average percentage biodegradation (%) |
Table 3. Calculation Table for the Recovery Rate
Test No. 11893 |
||||
Sample description |
A (mg) |
C (mg) |
D (%) |
E (%) |
Water + Test Substance 1 |
29.1 |
29.1 |
97.0 |
|
Water + Test Substance 2 |
28.6 |
28.6 |
95.3 |
96.2 |
Sludge + Test Substance 1 |
37.2 |
28.5 |
95.0 |
|
Sludge + Test Substance 2 |
37.9 |
29.2 |
97.3 |
96.2 |
Control blank |
8.7 |
|
|
|
Amount of test substance added: 30 mg A: Amount of residue (mg) C: Recovery amount (mg) Water: C=A/B Sludge: C=(A-A(Control blank))/B D: Recovery rate (%) D=C/30 mg × 100 E: Average recovery rate (%) |
DBDPEthane was not readily biodegradable by activated sewage sludge over a 28-day period when tested under Japanese MITI/OECD Ready Biodegradability 301C Modified MITI guidelines. IR spectra indicated the test substance was unchanged.
Description of key information
Ready Biodegradation (Kurume Labs, 1991), OECD 301C
EBP was not readily biodegradable by activated sewage sludge over a 28-day period when tested under Japanese MITI/OECD Ready Biodegradability 301C Modified MITI guidelines. IR spectra indicated the test substance was unchanged.
Key value for chemical safety assessment
- Biodegradation in water:
- not biodegradable
- Type of water:
- other: activated sewage
Additional information
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.
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