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Diss Factsheets
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EC number: 616-639-9 | CAS number: 78620-07-2
- 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:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Study period:
- 1985
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: conducted to OECD/EC guidelines with GLP
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 985
- Report date:
- 1985
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- Deviations:
- yes
- Principles of method if other than guideline:
- Deviations: the volume of the test solution was reduced from 3.0 to 1.5 litres. The sludge was aerated for 24 hours, centrifuged at 300 rpm and the supernatant was filled into the test solutions as inoculum.
- GLP compliance:
- yes (incl. QA statement)
Test material
- Details on test material:
- Test materal is 50% aqueous hydroxyphosphonic acid
- Name of test material (as cited in study report): TK 13061
- Physical state: aqueous solution
- Analytical purity: ca. 50% in water
- Lot/batch No.: 1
- Storage condition of test material: room temperature
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Remarks:
- 50 ml/min air free of CO2
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Details on inoculum:
- - Source of inoculum/activated sludge (e.g. location, sampling depth, contamination history, procedure): Bacteria collected from activated sludge of the sewage treatment plant of CH-4153 Reinach on 01/07/85.
- Preparation of inoculum for exposure: aerated for 24 hours, centrifuged at 1300rpm and the supernatant was filled into the test solutions as inoculum.
- Storage conditions: room temperature - Duration of test (contact time):
- 36 d
Initial test substance concentrationopen allclose all
- Initial conc.:
- 10 mg/L
- Based on:
- test mat.
- Initial conc.:
- 20 mg/L
- Based on:
- test mat.
Reference substance
- Reference substance:
- aniline
- Remarks:
- MERCK No.1261
Results and discussion
- Test performance:
- The biodegradation was calculated as:
10 mg/L test substance: 23% biodegradation in 36 days.
20 mg/L test substance: 56% in 36 days.
% Degradationopen allclose all
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 23
- Sampling time:
- 36 d
- Remarks on result:
- other: 10 mg/l
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 56
- Sampling time:
- 36 d
- Remarks on result:
- other: 20 mg/l
BOD5 / COD results
- Results with reference substance:
- See table below.
Any other information on results incl. tables
Carbon dioxide values and percentage biodegradation.
Days | 5 | 9 | 16 | 23 | 27 | 28 | 33 | 36 | |
10 mg/L | mg CO2 | 0.0 | 0.0 | 0.0 | 0.0 | 2.0 | 1.0 | 1.5 | 0.0 |
% degradation | 0.0 | 0.0 | 0.0 | 0.0 | 10.0 | 15.0 | 23.0 | 23.0 | |
20 mg/L | mg CO2 | 0.1 | 0.0 | 0.0 | 0.3 | 13.5 | 5.4 | 3.0 | 0.0 |
% degradation | 0.0 | 0.0 | 0.0 | 1.0 | 35.0 | 49.0 | 56.0 | 56.0 | |
Reference substrate | mg CO2 | 49.3 | 16.3 | 7.7 | 1.7 | 0.9 | 0.5 | - | - |
% degradation | 58.0 | 77.0 | 86.0 | 88.0 | 89.0 | 90.0 | - | - |
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- inherently biodegradable, not fulfilling specific criteria
- Conclusions:
- Trisodium [carboxy(oxido)methyl]phosphonate is biodegradable to some extent but not readily biodegradable in this test.
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.
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