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EC number: 236-419-2 | CAS number: 13360-78-6
- 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
- Study period:
- 1992-11-09 - 1993-05-17
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- Also complies with OECD GLP regulations. Deviations from GLP are limited, listed below, and are not believed to impact the reliability of the test results.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 D (Ready Biodegradability: Closed Bottle Test)
- Deviations:
- no
- GLP compliance:
- yes
- Remarks:
- It is unknown whether the stability, identity, strength and composition or other characteristics for the test material and positive control are documented in a GLP compliant manner.
- Specific details on test material used for the study:
- - Name of test material (as cited in study report): MRD-92-436; CT-519-92-C
- IUPAC nomenclature - Sodium diisobutyldithiophosphinate
- Appearance - Liquid
- CAS No. 13360-78-6
- Molecular Formula - C8H18PS2.Na
- Molecular Weight - 232 g/mole
- Purity 50% aqueous solution
- Storage condition of test material: At room temperature in the dark - Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, industrial (adaptation not specified)
- Details on inoculum:
- Fresh activated sludge was used as the inoculum. The activated sludge was obtained from the Somerset-Raritan Valley sewage Authority in Bridgewater, New Jersey. There were no known contaminants present believed to be at levels high enough to interfere with this study. The inoculum was blended and filtered before use. The bacteria level of the inoculum, in Colony Forming Units (CFU), was determined using Easicult TTC dip slides (1x10^4 colony).
The final bacteria count was calculated to be 45 CFU/ml. - Duration of test (contact time):
- 28 d
- Initial conc.:
- 2.1 mg/L
- Based on:
- test mat.
- Parameter followed for biodegradation estimation:
- O2 consumption
- Details on study design:
- -This test procedure was used to determine biodegradability by measuring dissolved oxygen concentrations in closed test systems (300mL BOD bottle). the test systems contained aqueous solutions consisting of a microbial inoculum in contact with test or reference material. Oxygen depletion by the microorganisms for oxidation of test material was periodically measured during a 28 day testing period. Blank test systems, which did not contain the test or reference material were also run concurrently with the other test systems. Microbial colony forming units (CFU/mL) in the inoculum were enumerated using the Easicult TTC dip slides, according to manufacturer's instructions.
Reported biodegradtion results are based on chemical oxygen demand (COD) of test material.
Administration of either the test material or aniline to the appropriate BOD bottle was accomplished by dilution of an aliquot of each stock solution with nutrient solutions, inoculum and glass distilled water.
Triplicate test systems were prepared for each of the days requiring dissolved oxygen analysis (days 0, 5, 15 and 28). - Reference substance:
- aniline
- Remarks:
- -Manufacturer: Aldrich Lot No. 00613AZ
- Parameter:
- % degradation (O2 consumption)
- Value:
- 78.8
- Sampling time:
- 28 d
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- readily biodegradable
- Conclusions:
- The test substance achieved 78.8% degradation within 28 days.
- Executive summary:
The biodegradability of the test material, and a positive control material (aniline) was studied in an aerobic, aqueous test system. This procedure was based on that outlined in the Organization for Economic Co-operation and Development (OECD) Test Guideline 301D, "Ready Biodegradability: Closed Bottle Test". This procedure was used to determine biodegradability by measuring the amount of oxygen utilized by a microbial population during the oxidation of a test material added to a dosed test system.
The substance biodegraded to 78.8% after 28 days, using a test concentration of 2.10 mg/L.
Since aniline, the positive control material, exceeded the pass level by degrading to 92.2%, this test can be considered valid.
Reference
MEAN PERCENT BIODEGRADABILITY RESULTS
Test System Day 5 Day 15 Day 28
MRD-92-436 0 41.89 78.84
Analine 40.68 56.55 92.24
Description of key information
The test material achieved 78.8% biodegradation within 28 days, using a test concentration of 2.10 mg/L.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
- Type of water:
- freshwater
Additional information
The biodegradability of the test material, and a positive control material (aniline) was studied in an aerobic, aqueous test system. This procedure was based on that outlined in the Organization for Economic Co-operation and Development (OECD) Test Guideline 301D, "Ready Biodegradability: Closed Bottle Test". This procedure was used to determine biodegradability by measuring the amount of oxygen utilized by a microbial population during the oxidation of a test material added to a dosed test system.
The substance biodegraded to 78.8% after 28 days, using a test concentration of 2.10 mg/L.
Since aniline, the positive control material, exceeded the pass level by degrading to 92.2%, this test can be considered valid.
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