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Diss Factsheets
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EC number: 275-604-2 | CAS number: 71550-24-8
- 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:
- 09 March 2017 to 19 April 2019
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 310 (Ready Biodegradability - CO2 in Sealed Vessels (Headspace Test)
- GLP compliance:
- yes (incl. QA statement)
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- sewage, predominantly domestic, non-adapted
- Remarks:
- urban (about 66%) and industrial (about 34%) liquid sewage
- Details on inoculum:
- - Source of inoculum/activated sludge: urban (about 66%) and industrial (about 34%) liquid sewage situated at San Rocco - Monza (MB), Italia.
- Storage conditions: under aerobic conditions
- Storage length: no data
- Preparation of inoculum for exposure: centrifuged and washed
- Pretreatment: none
- Concentration of sludge: 4 mg/L SS
- Duration of test (contact time):
- 28 d
- Initial conc.:
- 15.08 mg/L
- Based on:
- TOC
- Remarks:
- determined by REDOX SnC using CHN analyser
- Parameter followed for biodegradation estimation:
- inorg. C analysis
- Details on study design:
- TEST CONDITIONS
- Composition of medium: according to OECD 310
- Test temperature: 20°C
- pH: not indicated
- pH adjusted: no
- Suspended solids concentration: 4 mg/L
- Continuous darkness: yes
- Other: contimuous stirring
TEST SYSTEM
- Culturing apparatus: 1000 mL volumteric flask
- Number of culture flasks: 3/sampling and 5 for the sampling after 28 days for test substance, blancs and reference substance
- Measuring equipment: TOC analyser
- Test performed in closed vessels: yes
SAMPLING
- Sampling frequency: on day 1, 11, 14, 21 and 28 in blanks, reference substance controls and test substance treated bottles (3 replicates per sampling time except at day 28 5 replicates)
- Sampling method: in individual bottles reaction stopped with the addition of 6 mL of sodium hydroxide (1 M) (12 h before measuring)
- Sample storage before analysis: none
CONTROL AND BLANK SYSTEM
- Inoculum blank: yes
- Abiotic sterile control: yes
- Toxicity control: yes
STATISTICAL METHODS: - Reference substance:
- benzoic acid, sodium salt
- Remarks:
- at 20.01 mg/L as C
- Key result
- Parameter:
- % degradation (inorg. C analysis)
- Value:
- 13
- Sampling time:
- 1 d
- Key result
- Parameter:
- % degradation (inorg. C analysis)
- Value:
- 51
- Sampling time:
- 11 d
- Key result
- Parameter:
- % degradation (inorg. C analysis)
- Value:
- 55
- Sampling time:
- 14 d
- Key result
- Parameter:
- % degradation (inorg. C analysis)
- Value:
- 64
- Sampling time:
- 21 d
- Key result
- Parameter:
- % degradation (inorg. C analysis)
- Value:
- 75
- Sampling time:
- 28 d
- Details on results:
- The substance is biodegradable, but does not meet the 10-day window criterion
- Results with reference substance:
- see table
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- readily biodegradable, but failing 10-day window
- Conclusions:
- the substance is considered to be readily biodegradable, but failing 10-day window.
- Executive summary:
In a test according to OECD 310, the substance (15.08 mg C/L) degraded 75% over a period of 28 days. The substance failed the 10 -day window.
Reference
CHECK POINT (Days) |
% OF BIODEGRADATION Reference substance |
% OF BIODEGRADATION Test item |
0 |
0 |
0 |
1 |
27 |
13 |
11 |
87 |
51 |
14 |
95 |
55 |
21 |
99 |
64 |
28 |
100 |
75 |
Description of key information
In a test according to OECD 310, the substance (15.08 mg C/L) degraded 75% over a period of 28 days. The substance failed the 10 -day window.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable but failing 10-day window
- Type of water:
- freshwater
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.
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.