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EC number: 801-347-8 | CAS number: 20445-94-7
- 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

Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
- Endpoint:
- activated sludge respiration inhibition testing
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 2006
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Data is from peer reviewed journal. Study conducted according a standardised method.
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- other: Methods for Examination of Waters and Associated Materials: 5 Day Biochemical Oxygen Demand (BOD5)
- Version / remarks:
- 2nd edition 1988 (with Dissolved oxygen in waters, Amendment 1988)
Procedure recommended by the Standing Committee of Analysts of the UK Department of the Environment - Principles of method if other than guideline:
- The effect of the test substance on the degree of biodegradation of two easily biodegradable substances, glucose and glutamic acid, was also considered to measure the inhibition potential of the substance.
- GLP compliance:
- not specified
- Specific details on test material used for the study:
- - Synonym: CYPHOS® IL 169 PHOSPHONIUM SALT
- Purity/Composition: >= 95% - Analytical monitoring:
- not specified
- Vehicle:
- no
- Test organisms (species):
- other: Unknown
- Test type:
- not specified
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 5 d
- Hardness:
- Not specified
- Test temperature:
- Not specified
- pH:
- Not specified
- Dissolved oxygen:
- Not specified
- Salinity:
- Not specified
- Conductivity:
- Not specified
- Nominal and measured concentrations:
- 1, 10 and 100 mg/L (nominal)
- Reference substance (positive control):
- no
- Duration:
- 5 d
- Dose descriptor:
- NOEC
- Effect conc.:
- < 1 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- other: Inhibition of biodegradation of glucose/glutamate
- Details on results:
- After 5 days of exposition, the inhibition of glucose/glutamate biodegradation was 100% at concentrations of 10 and 100 mg/L, and of 78% at 1 mg/L.
Therefore, the test material was inhibitory to the microorganisms at all tested concentrations. - Validity criteria fulfilled:
- not specified
- Conclusions:
- In this test the inhibitory effect of the test substance on the biodegradation of two easily biodegradable substances was studied.
The test material showed little inhibition. - Executive summary:
In this study, the inhibitory effect of the test substance Tributyl(ethyl) phosphonium diethylphosphate on the biodegradation of two easily biodegradable substances (glucose and glutamic acid) was tested according to a UK guideline (Methods for Examination of Waters and Associated Materials: 5 Day Biochemical Oxygen Demand (BOD5)).
The degree of inhibition of the degradation of the two reference substances was 19% at 100 mg/L; 15% at 10 mg/L and 16% at 1 mg/L. Therefore, it was concluded that the substance showed little inhibitory effect to the microorganisms.
Reference
Description of key information
In this study, the inhibitory effect of the test substance Tributyl(ethyl) phosphonium diethylphosphate on the biodegradation of two easily biodegradable substances (glucose and glutamic acid) was tested according to a UK guideline (Methods for Examination of Waters and Associated Materials: 5 Day Biochemical Oxygen Demand (BOD5)).
The degree of inhibition of the degradation of the two reference substances was 19% at 100 mg/L; 15% at 10 mg/L and 16% at 1 mg/L. Therefore, it was concluded that the substance showed little inhibitory effect to the microorganisms.
Key value for chemical safety assessment
Additional information
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