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EC number: 247-728-7 | CAS number: 26479-35-6
- 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
Toxicity to microorganisms
Administrative data
- Endpoint:
- toxicity to microorganisms, other
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Title:
- Unnamed
- Year:
- 2 013
- Report date:
- 2013
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: OECD 301D
- Principles of method if other than guideline:
- The purpose of this study was to evaluate the aerobic biodegradability of potassium allophonate
in water containing mineral salts and the secondary effluent from a wastewater treatment plant as
the source of microbial inoculum. - GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- Potassium carbamoylcarbamate
- EC Number:
- 247-728-7
- EC Name:
- Potassium carbamoylcarbamate
- Cas Number:
- 26479-35-6
- Molecular formula:
- C2H3KN2O3
- IUPAC Name:
- potassium N-carbamoylcarbamate
- Details on test material:
- Name of test material (as cited in study report): Potassium Allophonoate
- Lot/batch No.: K10-272
Constituent 1
Sampling and analysis
- Analytical monitoring:
- not required
- Details on sampling:
- The percent degradation for the test substance treatment on Days 7, 14, 21, and 28
Test organisms
- Test organisms (species):
- activated sludge, domestic
- Details on inoculum:
- Bacterial plate counts were performed on the filtered secondary effluent inoculum at initiation and
one of the duplicate BOD bottles for each treatment at Day 28. A 1 mL sample of buffered water
was plated directly to check for sterility. An agar blank was prepared by adding only agar to a Petri
dish. Duplicate 1-mL aliquots of each dilution were directly analyzed by plate counting methods
patterned after methods described in Standard Methods for the Examination of Water and
Wastewater (3). The bacterial growth medium was Plate Count Agar (Difco Laboratories). The
plates were incubated at 26 + 2°C for six days before counting the number of colonies on plates
with greater than 30, but fewer than 300 colonies. The number of colonies at the dilution coming
closest to 300 colonies was used to calculate colony forming units (CFU)/mL for each BOD bottle
sampled.
Study design
- Test type:
- static
- Total exposure duration:
- 28 d
Results and discussion
Effect concentrations
- Key result
- Duration:
- 28 d
- Dose descriptor:
- NOEC
- Effect conc.:
- 5 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- other: viability
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- The results
from bacterial plate count analyses indicated that the test substance was not toxic to the
secondary effluent inoculum at a concentration of 5.0 mg/L total product.
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