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Diss Factsheets
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EC number: 200-756-3 | CAS number: 71-55-6
- 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
Distribution modelling
Administrative data
- Endpoint:
- distribution modelling
- Type of information:
- (Q)SAR
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: The calculation was based on the Mackay Level 1 distribution model. This model is widely accepted as reasonably reliable and therefore attracts a reliability assessment value of 2.
- Justification for type of information:
- QSAR prediction: migrated from IUCLID 5.6
Cross-reference
- Reason / purpose for cross-reference:
- reference to same study
Data source
Reference
- Reference Type:
- publication
- Title:
- Unnamed
- Year:
- 1 999
Materials and methods
- Model:
- calculation according to Mackay, Level I
- Calculation programme:
- Aquatic marine environment specifically for North Sea conditions. Th e ENVCLASS software distributed by the "Nordic Council of Ministers" was used to determine the ultimate distribution in environment
- Release year:
- 1 990
- Media:
- other: water, air,sediment.
Test material
- Reference substance name:
- 1,1,1-trichloroethane
- EC Number:
- 200-756-3
- EC Name:
- 1,1,1-trichloroethane
- Cas Number:
- 71-55-6
- Molecular formula:
- C2H3Cl3
- IUPAC Name:
- 1,1,1-trichloroethane
- Details on test material:
- none provided
Constituent 1
Study design
- Test substance input data:
- - Molar mass: 133.4
- Data temperature:20 C
- Water solubility: 1.55g/L at 20C
- Vapour pressure: 13300
- log Kow:2.46
- Sediment - water partition coefficient: 7.09
- Melting point: -33C
- Boiling point: 73-74C at 1013Pa
- Decomposition temp: =/>100C
- Koc: 2.2
- Density: 1.34 at 20C
Results and discussion
Percent distribution in media
- Air (%):
- 99.7
- Water (%):
- 0.25
- Soil (%):
- 0.01
- Sediment (%):
- 0.01
Any other information on results incl. tables
The results from the tables above show that the bulk of 1,1,1-trichloroethane released into the environment will be present in air. Values in soils and sediments are extremely low and in the case of sediment the reviewers suggest that no further work is required in this area.
Applicant's summary and conclusion
- Conclusions:
- The authors conclude that although 1,1,1-trichloroethane is not perceived to be a problem in the marine environment it is persistent in the atmosphere and restrictions for use as feedstock or essential use are restricted under the 1996 Montreal Protocol.
- Executive summary:
The Mackay level 1distribution model is a useful guide to how a specific compound will partition between the 4 environmental compartments. the results of the model showed that in the case of trichloroethane the bulk of the material ended up in the air with approximately 0.25% in the aquatic environment and less than 0.01% in soil and sediment. The conclusions of the authors are that for practical purposes soil and sediments can be discounted as compartments of concern in the environmental fate of 1,1,1-trichloroethane.
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