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EC number: 217-703-5 | CAS number: 1934-75-4
- 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: inherent biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 20 June 2000 - 25 July 2000
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: According to OECD Guideline and GLP.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 000
- Report date:
- 2000
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 302 B (Inherent biodegradability: Zahn-Wellens/EMPA Test)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- Sodium dicyanoamide
- EC Number:
- 217-703-5
- EC Name:
- Sodium dicyanoamide
- Cas Number:
- 1934-75-4
- Molecular formula:
- C2HN3.Na
- IUPAC Name:
- sodium dicyanoazanide
- Reference substance name:
- Sodiumdicyanamide
- IUPAC Name:
- Sodiumdicyanamide
- Test material form:
- other: solid
- Details on test material:
- Batch No: 62/3727
Appearance: solid, white
Purity: 98.1%
Constituent 1
Constituent 2
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, industrial, non-adapted
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 237 mg/L
- Based on:
- other: DOC/g test substance
Results and discussion
% Degradation
- Parameter:
- % degradation (DOC removal)
- Value:
- 0
- Sampling time:
- 28 d
- Details on results:
- There was no degradation after 28 days of incubation detecable. Therefore the test substance must be considered to be not biodegradable under the chosen conditions. The control substance was degraded >99% within 10d. The threshold of >70% was met within 7d of incubation (99%). Accordingly, the test is considered to be valid. No bacterial toxicity was observed at the used concentration.
Any other information on results incl. tables
Table 1: Results of Testing Biodegradability according to "modified Zahn Wellens-Test" OECD 302 B
Date |
Time (Days) |
DOCnetto(mg/L) |
Degradation (%) |
06-27-00 06-27-00 06-28-00 06-30-00 07-04-00 07-07-00 07-11-00 07-14-00 07-18-00 07-21-00 07-24-00 07-25-00 |
0 3h 1 3 7 10 14 17 21 24 27 28 |
256.75 247.12 248.72 255.51 239.78 273.01 271.76 271.27 284.95 273.96 264.14 271.39 |
- - - - 3 - - - - - - - |
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- under test conditions no biodegradation observed
- Conclusions:
- Under the chosen conditions no degradation after 28 days is calculated. Therefore the test substance must be considered to be "not biodegradable". The control substance Na-benzoate was degraded by >99% within 10d. The threshold of "inherent biodegradability" of >70% was met within 7d of incubation (99%).
- Executive summary:
The substance was tested for inherent biodegradability according to OECD 302 B, (Modified Zahn-Wellens Test) and GLP in year 2000. Under the chosen conditions no degradation after 28 days is calculated. Therefore the test substance must be considered to be "not biodegradable". The control substance Na-benzoate was degraded by >99% within 10d. The threshold of "inherent biodegradability" of >70% was met within 7d of incubation (99%). Therefore, the test is considered to be valid. No bacterial toxicity was observed at the used concentration.
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