Registration Dossier
Registration Dossier
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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 206-354-4 | CAS number: 330-54-1
- 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
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Phototransformation in air
Administrative data
Link to relevant study record(s)
- Endpoint:
- phototransformation in air
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- other information
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Guideline calculation method
- Qualifier:
- no guideline required
- Principles of method if other than guideline:
- Model calculation was performed according to the Atkinson estimation method of the vapour phase reaction rate with hydroxyl radicals (kOH) as proposed by Atkinson in Environmental Toxicology and Chemistry, volume / (1988), pp 435-442
- GLP compliance:
- no
- Remarks:
- not applicable
- Executive summary:
In order to determine the atmospheric half-life of Diuron, a calculation based on the Atkinson estimation method was used and the Atmospheric Oxidative Program was also used. A half-life of 2.9 to 3.1 hours was determined indicating a rapid disappearance of Diuron in air.
Reference
The photochemical oxidative degradation of Diuron in air was determined based on molecular structure and the reaction rate constant with OH radicals (kOH), to be 122.87 x 10-12cm3.molecule-1.sec-1.
Assuming hydroxyl radicals (OH) to be 5 x 105molecules.cm-3, the degradation half-life of Diuron was estimated to be 3.1 hours assuming a moderate OH concentration in the air. A chemical half-life of 4.5 hours is estimated.
The Atmospheric Oxidative Program was also used to determine the half-life in air of Diuron. With a reaction rate constant of 132.16 x 10-12, a half-life of 2.9 hours was calculated.
Description of key information
A half-life of 2.9 to 3.1 h indicates that Diuron will disappear rapidly in air
Key value for chemical safety assessment
Additional information
In order to determine the atmospheric half-life of Diuron, a calculation based on the Atkinson estimation method was used and the Atmospheric Oxidative Program was also used (hellpointner, 1991). A half-life was determined of 2.9 to 3.1 h indicating a rapid disappearance on Diuron in air.
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.
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