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EC number: 200-909-4 | CAS number: 75-86-5
- 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

Additional information on environmental fate and behaviour
Administrative data
- Endpoint:
- additional information on environmental fate and behaviour
- Type of information:
- other: Field study during remediation of a spill
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: scientifically acceptable study documented in sufficient detail
Data source
Reference
- Reference Type:
- publication
- Title:
- Remediation of subsurface water and soil polluted
- Author:
- Giudici D
- Year:
- 1 996
- Bibliographic source:
- Tecnologie Chimiche, 16, 67-71.
Materials and methods
Test material
- Reference substance name:
- 2-hydroxy-2-methylpropionitrile
- EC Number:
- 200-909-4
- EC Name:
- 2-hydroxy-2-methylpropionitrile
- Cas Number:
- 75-86-5
- Molecular formula:
- C4H7NO
- IUPAC Name:
- 2-hydroxy-2-methylpropanenitrile
- Details on test material:
- - Name of test material (as cited in study report): acetone cyanohydrin
Constituent 1
Results and discussion
Any other information on results incl. tables
A spill of about 298 ton of acetone cyanohydrin at Elf-Atochem, Rho, Italy, spread in the ground and into the top subsurface water layers. Since acetone cyanohydrin is totally soluble in water, pollution was confined to the water layer and the clay layer above. The water was extracted through wells excavated along the length of the valley downstream from the spill. The soil was subjected to washing with water; removal of the pollutant was complete. The contaminated water streams were treated with NaOH to decompose the acetone cyanohydrin into acetone and Na cyanide and subsequently oxidized with H2O2 to eliminate cyanides. In-situ elimination of pollutant that might have escaped the clay and water layers and invaded soil and deeper water table, was carried out by treatment with H2O2. There was no damage to the local population or the environment, as the remediation was carried out in a timely manner by trained personnel.
Applicant's summary and conclusion
- Conclusions:
- A spill of about 298 ton of acetone cyanohydrin at Elf-Atochem, Rho, Italy, spread in the ground and into the top subsurface water layers. The pollution was confined to the water layer and the clay layer above. The water was extracted through wells excavated along the length of the valley downstream from the spill. The soil was subjected to washing with water; removal of the pollutant was complete. The contaminated water streams were treated with NaOH to decompose the acetone cyanohydrin into acetone and Na cyanide and subsequently oxidized with H2O2 to eliminate cyanides. There was no damage to the local population or the environment.
- Executive summary:
A spill of about 298 ton of acetone cyanohydrin at Elf-Atochem, Rho, Italy, spread in the ground and into the top subsurface water layers. Since acetone cyanohydrin is totally soluble in water, pollution was confined to the water layer and the clay layer above. The water was extracted through wells excavated along the length of the valley downstream from the spill. The soil was subjected to washing with water; removal of the pollutant was complete. The contaminated water streams were treated with NaOH to decompose the acetone cyanohydrin into acetone and Na cyanide and subsequently oxidized with H2O2 to eliminate cyanides. In-situ elimination of pollutant that might have escaped the clay and water layers and invaded soil and deeper water table, was carried out by treatment with H2O2. There was no damage to the local population or the environment, as the remediation was carried out in a timely manner by trained personnel.
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