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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 249-854-8 | CAS number: 29797-40-8
- 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
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
A log Koc of 3.36 was determined for DCT mixture according to OECD 121 (Reference: Neuland, 2010), indicating that DCT mixture is slightly mobile in soil. Following this result the substance is not highly adsorptive according to REACH guidance document Table R. 7.11-2 (ECHA 2012).
Key value for chemical safety assessment
- Koc at 20 °C:
- 1 291
Additional information
Key study
The adsorption coefficient was determined for dichloromethylbenzene mixture by the HPLC-method according to the OECD Guideline 121. The test temperature was 40 °C. The elevated temperature had no impact on the result, which can therefore be related to 25°C.
The adsorption coefficient was determined to be log Koc = 3.36.
Reference: Neuland, 2010
Supporting study
The distribution coefficient log Koc of the dichloromethylbenzene mixture was calculated to be 3.65 - 3.73. The programme KOCWIN v.2.00 and the experimental result of log kow = 4.2 - 4.3 obtained with the HPLC method according to OECD Guideline 117 (Neuland, 2010) were used.
Reference: Keller, 2010
Further studies
The log Koc was calculated for 2,4-DCT, 2,5-DCT, 3,4 - and 2,3 -DCT with PCKocWin v.1.66 to be 2.9.
As being a calculation, the reliability is lower or equal to 2, but cannot be assigned definitely, because the information on the used log kow is missing. (Reliability: 4)
Reference: Lanxess, 2009
The Koc value was calculated for 2,4-dichlorotoluene to be 4800 (log koc = 3.68) by using a measured log Kow of 4.24 according to Hansch and Leo, 1985 and a regression-based equation by Lyman, 1990.
As only a short abstract from a peer-reviewed database is available, the reliability cannot be assigned definitely.The result refers only to one of the isomers of the mixture and was obtained by calculation, therefore the reliability is not comparable to the reliability of the key study. (Reliability: 4)Reference: HSDB, 2009
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.