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EC number: 202-908-4 | CAS number: 101-02-0
- 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:
- 1995
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: according to GLP and OECD guideline, with deviation
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 995
- Report date:
- 1995
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- Deviations:
- yes
- Remarks:
- only 1 CO2 scrubber used
- GLP compliance:
- yes
Test material
- Reference substance name:
- Triphenyl phosphite
- EC Number:
- 202-908-4
- EC Name:
- Triphenyl phosphite
- Cas Number:
- 101-02-0
- Molecular formula:
- C18H15O3P
- IUPAC Name:
- triphenyl phosphite
- Details on test material:
- - Physical state: liquid
- Storage condition of test material: room temperature
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Details on inoculum:
- Activated sludge collected from the sewage treatment plant of CH-4153 Reinach on 16/01/95. The pH after collection was 7.8.
The preparation was carried out according to the method described in the guideline. - Duration of test (contact time):
- 29 d
Initial test substance concentrationopen allclose all
- Initial conc.:
- 22.4 mg/L
- Based on:
- test mat.
- Initial conc.:
- 22 mg/L
- Based on:
- test mat.
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- CO2 evolution
- Details on study design:
- TEST CONDITIONS
- vessels: 2 liter flasks (dark brov^m glass) equipped with gas inlet and magnetic stirrer
- Composition of medium: according to guideline
- Test temperature: 22-+2°C
- Aeration of dilution water: ca 25 ml/min purified from carbon dioxide
- CO2 Scrubbers: approx 250 ml scrubbers with gas inlet tubes equipped with sintered glass tips containing 200 ml 0.05 N sodium
hydroxide. Only one CO2 scrubber was used per test bottle. Theoretically, a solution of 0.05 M NaOH is siifficient to trap at least two times more CO2 than the maximum ThC02 which can evolve in each test bottle (including CO2 possibly evolved from the bacteria e.g., endogenous respiration). Moreover, experimentally it was confirmed that no measurable CO2 carry over has ever occured with the scrubbers used.
For the toxicity control, where the test substance and reference were applied together, the reference amount was 15.0 mg DOC/L and the test substance amount was 16.6 mg ThOC/L. Before application, the inoculum was pre acclimated to the test medium over night.
The aeration was performed inside 1.21 water, containing the amount of mineral salts for 1.5 L. The final volume was made up to 1.51 with a 300 ml mixture made from: the test substance (the above mentioned amount) in 285 ml bidistilled water and 15 ml (4.5 mg) vehicle Polyoxyethylen -Sorbitan monooleate : TWEEN 80 (Fluka 93781),which was applied as a stock solution of 300 mg/l. This mixture was homogenized by polytron for 5 minutes and added to the test vessel, which was immediately connected to the CO2 scrubber.
SAMPLING
- Sampling frequency: the evolved CO2 trapped by the 0.05 N NaOH solution of the blank and test substance was measured at 0, 3,6,8,10,13,17,20, 24,28 and 29 days.
- Sampling method: At each sampling day the CO2 trapped in the scrubbers was measured as inorganic carbon with a carbon analyzer (Shimadzu TOC-500).
Reference substance
- Reference substance:
- benzoic acid, sodium salt
Results and discussion
% Degradationopen allclose all
- Key result
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 63
- Sampling time:
- 29 d
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 60
- Sampling time:
- 6 d
- Details on results:
- readily biodegradable
pass level (60 % ) : 6 days
time window : 6 days
In the toxicity control (test substance + reference substance + inoculum) no inhibition of degradation was observed.
BOD5 / COD results
- Results with reference substance:
- 93% after 20 days
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- readily biodegradable
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