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EC number: 477-690-9 | CAS number: 874819-71-3
- 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 soil
Administrative data
Link to relevant study record(s)
- Endpoint:
- biodegradation in soil: simulation testing
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2005-07-21 - 2006-09-05
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 307 (Aerobic and Anaerobic Transformation in Soil)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Test type:
- laboratory
- Radiolabelling:
- no
- Oxygen conditions:
- aerobic
- Soil classification:
- DIN 19863 (Deutsche Industrie-Norm)
- Soil no.:
- #1
- Soil type:
- sand
- % Org. C:
- 1.15
- pH:
- 6
- CEC:
- 7 meq/100 g soil d.w.
- Soil no.:
- #2
- Soil type:
- loamy sand
- % Org. C:
- 2.33
- pH:
- 5.7
- CEC:
- 11 meq/100 g soil d.w.
- Soil no.:
- #3
- Soil type:
- loamy sand
- % Org. C:
- 1.02
- pH:
- 5.8
- CEC:
- 9 meq/100 g soil d.w.
- Details on soil characteristics:
- The soils of different characteristics were sampled on/at:
• LUFA 2.1: October 11, 2005 (batch no.: F2.14105, SGS INSTITUT FRESENIUS GmbH identification: 010/5358087), depth of soil collection was down to 25 cm), Germany, Rheinland- Pfalz, Dudenhofen, Am Hanhofer Weg links, Nr. 3336/58, location of soil collection of no agricultural use, agricultural plant protection products and organic fertilizers not used for the sampling year and 4 former years.
Soil type (DIN/USDA): sand
• LUFA 2.2: October 24, 2005 (batch no.: F2.24305, SGS INSTITUT FRESENIUS GmbH identification: 010/5358088), depth of soil collection was down to 25 cm), Germany, Rheinland- Pfalz, Hanhofen, Großer Striet, Nr. 585, meadow, agricultural plant protection products and organic fertilizers not used for the sampling year and 4 former years.
Soil type (DIN/USDA): loamy sand
• LUFA 2.3: October 13, 2005 (batch no.: F2.34105, SGS INSTITUT FRESENIUS GmbH identification: 010/5358089), depth of soil collection was down to 25 cm), Germany, Rheinland- Pfalz, Offenbach, Im Bildgarten Nr. 586, fallow soil and pumpkin, agricultural plant protection products not used for the sampling year and 2 former years.
Soil type (DIN/USDA): loamy sand - Soil No.:
- #1
- Duration:
- 29 d
- Soil No.:
- #2
- Duration:
- 29 d
- Soil No.:
- #3
- Duration:
- 29 d
- Soil No.:
- #1
- Initial conc.:
- 0.15 mg/kg soil d.w.
- Based on:
- test mat.
- Soil No.:
- #2
- Initial conc.:
- 0.15 mg/kg soil d.w.
- Based on:
- test mat.
- Soil No.:
- #3
- Initial conc.:
- 0.15 mg/kg soil d.w.
- Based on:
- test mat.
- Parameter followed for biodegradation estimation:
- test mat. analysis
- Key result
- Soil No.:
- #1
- DT50:
- 5.3 d
- Type:
- (pseudo-)first order (= half-life)
- Temp.:
- 20 °C
- Key result
- Soil No.:
- #2
- DT50:
- 3.9 d
- Type:
- (pseudo-)first order (= half-life)
- Temp.:
- 20 °C
- Key result
- Soil No.:
- #3
- DT50:
- 8.6 d
- Type:
- (pseudo-)first order (= half-life)
- Temp.:
- 20 °C
- Transformation products:
- yes
- No.:
- #1
- Evaporation of parent compound:
- not measured
- Volatile metabolites:
- not measured
- Residues:
- not measured
- Conclusions:
- The DT-50 values of N-(2-nitrophenyl)phosphoricacid triamide in the LUFA 2.1, LUFA 2.2 and LUFA 2.3 were 5.3, 3.9 and 8.6 days. The DT-90 values of N-(2-mtrophenyl)-phosphoricacid triamide in the LUFA 2.1, LUFA 2.2 and LUFA 2.3 were 17.7, 13.0 and 28.6 days.
- Executive summary:
Aerobic Soil Degradation of N-(2-nitrophenyl)phosphoricacid triamide
N-(2-nitrophenyl)phosphoricacid triamide was tested in aerobic soil on the basis of OECD/OCDE Guideline no.307 for the testing of chemicals, adopted April 24, 2002. The study was performed in the laboratory using analytical grade N-(2-nitrophenyl)phosphoricacid triamide (purity of 99 % minimum). The degradation of N-(2-nitrophenyl)phosphoricacid triamide was investigated under aerobic conditions at 20 °C. Three German soils of different characteristics were used for the experiment (LUFA 2.1 - sand, LUFA 2.2 - loamy sand and LUFA 2.3 - loamy sand). The test concentration of 0.15 mg/kg dry soil was based on a penetration depth of the test item in the soil of 10 cm, a soil bulk density of 1 g/cm3 and on a total use of 150 g a.s./ha/year. The soil systems were acclimatized under a dynamic atmosphere of air to maintain aerobic conditions. The test period (two series) consisted of sampling intervals at times zero time, 1, 3, 7, 10, 14, 15, 22 and 29 days after incubation. The recoveries of N-(2-nitrophenyl)phosphoncacid triamide for the initial time specimens ranged from 84 to 95 % of the applied test item. One major degradation product of N-(2-nitrophenyl)phosphoricacid triamide was produced under aerobic conditions. 2-Nitroaniline reached maximum values of approximately 50 % in terms of the available compound (day-10 to day-15). For the description of the disappearance time of N-(2-nitrophenyl)phosphoricacid triamide, a 1st order kinetic was chosen. N-(2-nitrophenyl)phosphoricacid triamide degraded fastly in the soil test systems. The DT-50 values of N-(2-nitrophenyl)phosphoricacid triamide in the LUFA 2.1, LUFA 2.2 and LUFA 2.3 were 5.3, 3.9 and 8.6 days. The DT-90 values of N-(2-mtrophenyl)-phosphoricacid triamide in the LUFA 2.1, LUFA 2.2 and LUFA 2.3 were 17.7, 13.0 and 28.6 days.
Reference
Description of key information
OECD 307 guideline study, GLP
N-(2-nitrophenyl)phosphoricacid triamide was tested in aerobic soil on the basis of OECD/OCDE Guideline no.307 for the testing of chemicals, adopted April 24, 2002. The study was performed in the
laboratory using analytical grade N-(2-nitrophenyl)phosphoricacid triamide (purity of 99 % minimum). The degradation of N-(2-nitrophenyl)phosphoricacid triamide was investigated under aerobic conditions at 20 °C. Three German soils of different characteristics were used for the experiment (LUFA 2.1 - sand, LUFA 2.2 - loamy sand and LUFA 2.3 - loamy sand). The test concentration of 0.15 mg/kg dry soil was based on a penetration depth of the test item in the soil of 10 cm, a soil bulk density of 1 g/cm3 and on a total use of 150 g a.s./ha/year. The soil systems were acclimatized under a dynamic atmosphere of air to maintain aerobic conditions. The test period (two series) consisted of sampling intervals at times zero time, 1, 3, 7, 10, 14, 15, 22 and 29 days after incubation. The recoveries of N-(2 -nitrophenyl)phosphoncacid triamide for the initial time specimens ranged from 84 to 95 % of the applied test item. One major degradation product of N-(2-nitrophenyl)phosphoricacid triamide was produced under aerobic conditions. 2-Nitroaniline reached maximum values of approximately 50 % in terms of the available compound (day-10 to day-15). For the description of the disappearance time of N-(2 -nitrophenyl)phosphoricacid triamide, a 1st order kinetic was chosen. N-(2-nitrophenyl)phosphoricacid triamide degraded fastly in the soil test systems. The DT-50 values of N-(2-nitrophenyl)phosphoricacid triamide in the LUFA 2.1, LUFA 2.2 and LUFA 2.3 were 5.3, 3.9 and 8.6 days. The DT-90 values of N-(2 -nitrophenyl)-phosphoricacid triamide in the LUFA 2.1, LUFA 2.2 and LUFA 2.3 were 17.7, 13.0 and 28.6 days.
Key value for chemical safety assessment
- Half-life in soil:
- 8.6 d
- at the temperature of:
- 20 °C
Additional information
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