Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 200-826-3 | CAS number: 74-97-5
- 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:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Study well documented, meets generally accepted scientific principles, acceptable for assessment.
Data source
Reference
- Reference Type:
- publication
- Title:
- Unnamed
- Year:
- 1 997
Materials and methods
- Principles of method if other than guideline:
- Calculation of the Ozone Depletion Potential (ODP) and atmospheric and total lifetimes of bromochloromethane using a two-dimensional chemical-transport model of the troposphere and stratosphere.
- GLP compliance:
- no
Test material
- Reference substance name:
- Bromochloromethane
- EC Number:
- 200-826-3
- EC Name:
- Bromochloromethane
- Cas Number:
- 74-97-5
- Molecular formula:
- CH2BrCl
- IUPAC Name:
- bromo(chloro)methane
- Details on test material:
- - Name of test material (as cited in study report): chlorobromomethane, CH2ClBr
Constituent 1
Results and discussion
Any other information on results incl. tables
The model-estimated atmospheric lifetime for CH2ClBr due to atmospheric chemical loss is 0.4 years (146 days). The main removal process, which represents a 99%, is the reaction with OH radicals. The atmospheric photolysis has only a minor effect on the atmospheric lifetimes (≤1%). The lifetime for ocean loss currently has a range of 0.43 -0.65 years. This results in a total lifetime of 0.21 -0.25 years.
The Ozone Depletion Potential (OPD) of chlorobromomethane is determined to be between 0.11 and 0.13.
Applicant's summary and conclusion
- Conclusions:
- The Ozone Depletion Potential (OPD) of chlorobromomethane is 0.11-0.13. The estimated atmospheric lifetime and the total lifetime are estimated to be of 0.4 and 0.21-0.25 years, respectively.
- Executive summary:
As Chlorobromomethane (CH2ClBr) is a chemical containing chlorine and bromine, it is important to determine the potential environmental effect from use and emissions, including effects on stratospheric ozone. The Ozone Depletion Potential (ODP), which is an important measure of the potential effects on ozone, is evaluated using a two-dimensional chemical-transport model of the troposphere and stratosphere. The results show that the main removal process (99%) in the atmosphere is the reaction with OH radiocals, while photolysis has only a minor (≤ 1%) effect on the atmospheric lifetime of the compound. The atmospheric lifetime of CH2ClBr due to atmospheric reactions is evaluated to be 0.4 years (146 days). However, oceanic losses are likely to be important for CH2ClBr. The lifetime for ocean loss currently has a range of 0.43 -0.65 years. This results in a total lifetime of 0.21 -0.25 years. The OPD of chlorobromomethane including the effects of the ocean sink is 0.11 -0.13. On the basis of the reported OPD, it can be concluded that chlorobromomethane is an ozone depleting substance.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.