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EC number: 217-157-8 | CAS number: 1758-73-2
- 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)
Description of key information
Readily biodegradable: 80.6% (O2 consumption) after 28 d (OECD 301C)
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
Two studies are available investigating the biodegradability of
aminoiminomethanesulphinic acid (CAS No. 1758-73-2). The key study was
performed according to OECD 301C (GLP) with a mixture of activated
sludge from STP, freshwater from rivers and lakes, marine water and
marine sediment (Anonymous, 1991). 100 mg/L of the test substance was
tested for biodegradation. The parameters O2 consumption and the test
material analysis using HPLC were used for the estimation of
biodegradation. It was found that the test substance formed urea (which
further degraded to CO2 and ammonia) and sulfuric acid in the test.
After 28 d the test item was degraded to 80.6% based on O2 consumption
and 100% based on test material analysis. Since no 10-day window is
required and the biodegradation is > 60% the test substance can be
regarded as readily biodegradable according to the OECD criteria.
The potential for biodegradation is supported by an additional study
according to NEN 3235, Section 5.4 Closed bottle test (Bogers, 1989). An
additional study determined the Chemical Oxygen Demand (COD) of the
substance (0.415 g O2/g test material; Cardinaals, 1988). The BOD5/ThOD
(COD) ratio was used for the estimation of biodegradation for a test
substance concentration of 2.0 and 10 mg/L. A biodegradation of 50.6%
and 40% (based on COD) resulted for the 2.0 mg/L and 10 mg/L test
solutions, respectively. Using the ThOD a biodegradation of 70.9% (for
2.0 mg/L) and 57.4% (for 10 mg/L) resulted. Based on the results it can
be concluded that even if 50% of ultimate degradation is not reached
based on COD that the substance shows potential for biodegradation.
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