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EC number: 616-628-9 | CAS number: 78543-37-0
- 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:
- July 1997
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 997
- Report date:
- 1997
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- 1996-01-21
Test material
- Reference substance name:
- potassium dibenzyl phosphate
- EC Number:
- 616-628-9
- Cas Number:
- 78543-37-0
- Molecular formula:
- C14-H14-O4-P.K
- IUPAC Name:
- potassium dibenzyl phosphate
- Test material form:
- solid
- Details on test material:
- Batch 97/8
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Details on inoculum:
- - Source of inoculum/activated sludge: Amixed population of activated sewage sludge micro-organims was obtained on 19 may 1997 from the aeration stage of the SevernTrent Plc sewage treatment plant at Belper, Derbyshire, UK, which treat predominatly domectis sewage
- Preparation of inoculum for exposure: the sample of activared sludge was maintained on continuous aeration upon receipt. A sample of the activated sludge was washed three times by settlement and resuspension in culture medium to remove an excessive amounts of Dissolved Organic Carbon (DOC) that may have been present. A sub-sample of the washed sewage sludge was then removed and the suspended solids concentration determined.
- Pretreatment:
- Concentration of sludge: 30 mg suspended solid (ss/L) - Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 20 mg/L
- Based on:
- DOC
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- CO2 evolution
Reference substance
- Reference substance:
- benzoic acid, sodium salt
Results and discussion
% Degradation
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 56
- Sampling time:
- 28 d
BOD5 / COD results
- Results with reference substance:
- 99% degradation after 28 days. The results are corrects.
Any other information on results incl. tables
Percentage biodegration value
Day |
% degradation Sodium Benzoate |
% degradation ITC 780 |
% degradation ITC 780 plus sodium Benzoate Toxicity control |
0 |
0 |
0 |
0 |
1 |
6 |
1 |
0 |
2 |
24 |
3 |
10 |
3 |
57 |
8 |
26 |
6 |
60 |
21 |
21 |
8 |
76 |
29 |
32 |
10 |
80 |
37 |
44 |
14 |
81 |
40 |
55 |
16 |
87 |
44 |
72 |
20 |
90 |
48 |
76 |
22 |
91 |
50 |
80 |
24 |
98 |
53 |
86 |
27 |
99 |
54 |
86 |
28 |
99 |
56 |
88 |
29* |
100 |
61 |
89 |
* Day 29 values corrected to included any carry-over of Co2 detected in absorber 2
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- The Dibenzyl Potassium Phosphate was not considered to be readely bioegradable
- Executive summary:
The readely biodegradability of Dibenzyl Potassium Phosphate has been determined according to OECD 301B test guideline in compliance with GLP.
The substance was determined to be not readely biodegradable.
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