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EC number: 803-919-2 | CAS number: 409071-16-5
- 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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 D (Ready Biodegradability: Closed Bottle Test)
- GLP compliance:
- yes (incl. QA statement)
- Specific details on test material used for the study:
- SOURCE OF TEST MATERIAL
- Source (i.e. manufacturer or supplier) and lot/batch number of test material:
Jiu Jiang Tinci Materials Technology Co., Ltd.
G200810043
- Purity, including information on contaminants, isomers, etc.:
>99.8%
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material:
In the refrigerator (2~8 °C), easy to hydrolyze and not in contact with moisture
- Stability and homogeneity of the test material in the vehicle/solvent under test conditions (e.g. in the exposure medium) and during storage:
Stable
- Stability in the medium, i.e. sensitivity of the test material to hydrolysis and/or photolysis:
Stable
- Solubility and stability of the test material in the solventehicle and the exposure medium:
The test substance is soluble in water.
- Reactivity of the test material with the incubation material used (e.g. plastic ware):
Non reactive - Oxygen conditions:
- anaerobic
- Inoculum or test system:
- activated sludge, domestic (adaptation not specified)
- Details on inoculum:
- The inoculum is a secondary effluent, collected from a treatment plant receiving predominantly domestic sewage. A fresh sample of effluent will be collected from the treatment plant and will be kept aerobic during transport.
This effluent will be allowed to settle for one hour, decanted and the decanted effluent will be used in the test.
Determination of Bacterial Population in the Inoculum
The bacterial population in the inoculum will be determined as colony forming units (CFU/mL) by diluting the inoculum to an appropriate dilution and then plating on nutrient agar plates.
Preconditioning of the Inoculum
The filtrate or the decanted effluent will be preconditioned by aerating for 5 to 7 days at 22 ± 2C. - Duration of test (contact time):
- 28 d
- Initial conc.:
- 3 mg/L
- Based on:
- test mat.
- Parameter followed for biodegradation estimation:
- O2 consumption
- Details on study design:
- TEST CONDITIONS
Solution Chemical Quantity (g)
A Potassium dihydrogen orthophosphate, KH2PO4 8.50
Dipotassium hydrogen orthophosphate, K2HPO4 21.75
Disodium hydrogen orthophosphate dihydrate, Na2HPO4.2H2O 33.40
Ammonium chloride, NH4Cl 0.50
These four constituents will be dissolved in water and the volume will be made up to 1 L. The pH of the solution should be 7.4+0.2
B Calcium chloride, dihydrate, CaCl2.2H2O
This will be dissolved in water and the volume will be made up to 1 L. 36.40
C Magnesium sulphate heptahydrate, MgSO4.7H2O
22.50
This will be dissolved in water and the volume will be made up to 1 L.
D Iron (III) chloride hexahydrate, FeCl3.6H2O
0.25
The mineral medium will be prepared by mixing 1 mL of solution A, B, C and D with 800 mL of water and final volume will be made up to 1 L. The pH of the mineral medium should be 7.4 ± 0.2.
TEST SYSTEM
- Culturing apparatus:
- Number of culture flasks/concentration:
total 16 flasks
- Method used to create aerobic conditions:
- Method used to create anaerobic conditions:
sealed bottles
- Measuring equipment:
SAMPLING
- Sampling frequency:
dissolved oxygen concentration analysis will be made every three or four days during the 28-day exposure period.
CONTROL AND BLANK SYSTEM
- Inoculum blank:
For blank (BL), only mineral medium with inoculum will be used.
- Toxicity control:
for preparation of toxicity control (TC), 15 mg sodium benzoate and 15 mg test item will be used to achieve test concentration of 3 mg/L. - Reference substance:
- benzoic acid, sodium salt
- Remarks:
- Sodium benzoate
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- -15.81
- Sampling time:
- 7 d
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- -7.69
- Sampling time:
- 14 d
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- 25.64
- Sampling time:
- 14 d
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- 35.47
- Sampling time:
- 28 d
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- According to the results, the substance is not readily biodegradable as the biodegradation fail to meet the 60% criteria.
Reference
Description of key information
According to the results, the substance is not readily biodegradable as the biodegradation fail to meet the 60% criteria.
Key value for chemical safety assessment
- Biodegradation in water:
- not biodegradable
- 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.
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