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EC number: 218-566-4 | CAS number: 2184-11-4
- 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:
- 2015-04-09~2015-05-08
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- GLP compliance:
- yes
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Duration of test (contact time):
- >= 0 - <= 29 d
- Initial conc.:
- > 10 - < 20 mg/L
- Based on:
- test mat.
- Parameter:
- % degradation (CO2 evolution)
- Value:
- > 60
- Sampling time:
- 10 d
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- readily biodegradable
- Conclusions:
- The test groups cultured in the activated sludge for 10 days and the %ThCO2 of the test article was greater than 60%. Therefore, this test article in the activated sludge belonged to the easy biodegradable substance.
- Executive summary:
According to OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test), this test article was readily biodegradable.
Reference
Table 1 : The amount of CO2 produced in the Ready Biodegradability Test
Time (day) |
CO2 produced (mg) |
|||||||
Test article |
Blank |
Positive control |
Toxicity control |
|||||
Flask1 |
Flask2 |
Mean |
Flask3 |
Flask4 |
Mean |
Flask5 |
Flask6 |
|
0 |
0.55 |
0.44 |
0.50 |
0.33 |
0.44 |
0.38 |
0.33 |
0.44 |
3 |
22.88 |
21.78 |
22.33 |
10.34 |
9.46 |
9.90 |
27.39 |
26.84 |
6 |
19.91 |
20.68 |
20.30 |
7.48 |
6.60 |
7.04 |
25.52 |
21.45 |
9 |
7.37 |
7.04 |
7.21 |
4.18 |
3.52 |
3.85 |
10.89 |
7.59 |
12 |
1.76 |
1.32 |
1.54 |
1.10 |
1.98 |
1.54 |
2.64 |
1.98 |
16 |
2.64 |
2.86 |
2.75 |
1.65 |
2.64 |
2.15 |
2.97 |
2.97 |
20 |
1.21 |
1.87 |
1.54 |
1.43 |
0.88 |
1.16 |
2.42 |
1.98 |
24 |
2.09 |
1.76 |
1.93 |
2.42 |
1.87 |
2.15 |
2.64 |
2.31 |
29 |
1.54 |
1.76 |
1.65 |
1.54 |
0.77 |
1.16 |
1.43 |
1.87 |
Table 2 : The percent of degradability in the Ready Biodegradability Test
Time (day) |
(The accumulated of CO2produced– The average amount of CO2produced in control group) / The test substance ( mg ) |
% ThCO2 |
||
Test article |
Positive control |
Test article |
Positive control |
|
0 |
0.00 |
0.00 |
0.24 |
-0.09 |
3 |
0.42 |
0.58 |
26.89 |
27.16 |
6 |
0.86 |
1.20 |
55.31 |
55.94 |
9 |
0.97 |
1.43 |
62.50 |
66.91 |
12 |
0.97 |
1.47 |
62.50 |
68.62 |
16 |
0.99 |
1.50 |
63.80 |
69.91 |
20 |
1.00 |
1.54 |
64.62 |
71.88 |
24 |
1.00 |
1.55 |
64.15 |
72.65 |
29 |
1.01 |
1.56 |
65.21 |
73.08 |
Description of key information
This test article should be the readily biodegradable substance.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
The final concentration of the test article and control article in this test was 15 mg/L, and the final concentration of activated sludge was 20 mg/L. The ThCO2 of the test article is 1.55 and that of article of the positive (Sodium benzoate) is 2.14. The result in this test came up to quality requirements, so that the data is valid. The test article in the activated sludge for 10 days, %ThCO2 of the test article was greater than 60%. According to OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test), this test article was readily biodegradable.
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