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Diss Factsheets
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EC number: 947-387-0 | CAS number: -
- 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: inherent biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- 16 August - 19 September 1990
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 302 C (Inherent Biodegradability: Modified MITI Test (II))
- Version / remarks:
- An update has been made to the OECD Guideline since the publication of the report.
- GLP compliance:
- not specified
- Specific details on test material used for the study:
- Test material: DMAPSA (Octadecanamide, N-(3-(dimethylamino)propyl)-) (CAS No. 7651-02-7).
Date of receipt: 24th July 1990.
Description: White waxy solid.
Storage: In original container at room temperature. - Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Details on inoculum:
- Inoculum: A mixed population of activated sewage sludge microorganisms.
Source: The aeration stage of Severn Trent PLC Sewage Treatment Plant, Belper, Derbyshire.
Preparation: The activated sludge was maintained at a temperature of 21 ± 1°C for 24 hours. An aliquot of the sludge was added to 10L of diluted water to give a suspended solids level of 111.35 mg/L (100 mg SS/L on dilution for the test) and aerated for seven days prior to the start of the test to reduce the oxygen demand of the control.
Usage rate: Equivalent to 100 mg dry weight/L. - Duration of test (contact time):
- ca. 28 d
- Initial conc.:
- ca. 30 mg/L
- Based on:
- test mat.
- Parameter followed for biodegradation estimation:
- O2 consumption
- Details on study design:
- Duration: 28 days.
Criteria: Oxygen consumption measured by direct manometer reading.
Agitation: By magnetic stirrers.
Temperature: 25 ± 1°C.
Lighting: The test was carried out in darkness.
Observations: Manometers volumes were recorded daily.
Percentage degradation values were calculated by comparison of the oxygen uptake with the Chemical Oxygen Demand (COD). The COD was determined to be 2.12 mgO2/mg. - Reference substance:
- aniline
- Parameter:
- % degradation (O2 consumption)
- Value:
- ca. 144
- Sampling time:
- 28 d
- Details on results:
- DMAPSA attained 144 -147% degradation within 28 days calculated from oxygen uptake and so can, therefore, be considered as inherently biodegradable under the strict terms and conditions of the OECD Guidelines. It is suggested that the percentage degradation values in excess of 100% were the result of nitrification hence increasing the oxygen consumption levels.
- Results with reference substance:
- Aniline attained 66% biodegradation after 7 days and 70% after 14 days thereby confirming the suitability of the inoculum and culture conditions. Total organic Carbon (TOC) analysis showed that aniline attained 99% degradation after 28 days.
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- inherently biodegradable
- Conclusions:
- DMAPSA was shown to be inherently biodegradable.
- Executive summary:
The inherent biodegradation of DMAPSA (Octadecanamide, N-(3-(dimethylamino)propyl)-) was assessed by modified MITI method (II) (OECD Guideline 302C).
DMAPSA attained 144 -147% degradation within 28 days calculated from oxygen uptake and so can, therefore, be considered as inherently biodegradable under the strict terms and conditions of the OECD Guidelines. It is suggested that the percentage degradation values in excess of 100% were the result of nitrification hence increasing the oxygen consumption levels.
Reference
Description of key information
The inherent biodegradation of DMAPSA (Octadecanamide, N-(3-(dimethylamino)propyl)-) was assessed by modified MITI method (II) (OECD Guideline 302C).
DMAPSA attained 144 -147% degradation within 28 days calculated from oxygen uptake and so can, therefore, be considered as inherently biodegradable under the strict terms and conditions of the OECD Guidelines. It is suggested that the percentage degradation values in excess of 100% were the result of nitrification hence increasing the oxygen consumption levels.
Key value for chemical safety assessment
- Biodegradation in water:
- inherently biodegradable
- Type of water:
- freshwater
Additional information
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