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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 220-668-9 | CAS number: 2855-27-8
- 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
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
- Type of water:
- freshwater
Additional information
Biodegradation of the test substance has been tested according to the draft OECD guideline 301B. After 28 days a biodegradation rate of 11% with a test substance concentration of 10 mg/L has been observed. A test substance concentration of 20 mg/L resulted in a biodegradation rate of 1%. Therefore, the test substance is not readily biodgradable. However, it is unclear if the test substance is still present in the test medium during the test duration. Due to the high Henry's Law constant and a low water solubilty, a high volatility of the test substance from aquatic systems is expected. The test substance might not have been bioavailable in the test system.
In a second test, the ready biodegradability of the test substance has been examined with a non-adapted activated sludge in the Headspace Test according to OECD 310. In the study, silicone oil has been used to achieve an improved bioavailability of the test substance and also the controls has been tested in presence of silicone oil. For a prolongation of the study period from 28 days to 56 days additional replicates of the test substance and the inocolum control have been used. The biodegradation has been followed by TIC analyses of the quantity of CO2 produced by the respiration of bacteria during the study period. The degradation rate of the reference substance (with and without silicone oil) reached the pass level of 60% within 7 days and a maximum of 89% after 28 days. The toxicity control revealed no inhibition of the biodegradation of the reference substance by the test substance. The test substance replicates have not reach the 10% level (beginning of biodegradation) until test end. No biodegradation has been observed after 28 days and 56 days. The test substance has been classified as not readily biodegradable under the tested conditions.
A further prediction with the QSAR program Biowin, revealed ambiguous results. The models Biowin 1 and Biowin 2 predicted a fast biodegradation. The estimated biodegradation time is weeks or days to weeks according to Biowin model 3 and 4, respectively. Biowin model 5 and 6 predicted no fast biodegradation. The overall conclusion of the biowin model is no ready biodegradation.
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.