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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 216-721-0 | CAS number: 1653-19-6
- 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
![](https://chesar.echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_physical-and-chemical-properties.png)
Endpoint summary
Administrative data
Description of key information
Additional information
Appearance
2,3 -Dichloro-1,3 -butadiene (DCBD) is a colourless to yellowish liquid (OECD SIDS).
Melting point
The melting point of 2,3 -dichloro-1,3 -butadiene (DCBD) is reported to be -40°C (Beilstein).
Boiling point
The boiling point of 2,3 -dichloro-1,3 -butadiene (DCBD) is reported to be 98°C (CRC Handbook).
Density
The density of 2,3 -dichloro-1,3 -butadiene (DCBD) is reported to be 1.1829 g/cm3 (CRD Handbook).
Granulometry
A waiver is proposed for this data requirement as the substance is a liquid.
Vapour pressure
The vapour pressure of 2,3 -dichloro-1,3 -butadiene (DCBD) is reported to be 107.4 hPa at 20°C, 132.7 hPa at 25°C and 341.5 hPa at 50°C (Bayer 2004).
Partition coefficient
The partition coefficient (log Kow) for 2,3 -dichloro-1,3 -butadiene (DCBD) was predicted to be 3.02 by QSAR estimation based on KOWWIN (Pross 2005).
Water solubility
A waiver is proposed for this data requirement because the test substance is not stable in water. This is supported by the aqueous hydrolysis study which shows rapid hydrolysis.
The water solubility of 2,3 -dichloro-1,3 -butadiene (DCBD) is calculated to 314.4 mg/L at 25 °C (EPWIN, 2010).
Surface tension
A waiver is proposed for this data requirement as the test substance is very unstable in water.
Flash point
The flash point of 2,3 -dichloro-1,3 -butadiene (DCBD) is reported to be 16.5 °C at 1013 hPa (Currenta 2010).
Autoflammability
The autoflammability of 2,3 -dichloro-1,3 -butadiene (DCBD) is reported to be 415 °C at 1014 hPa (Currenta 2010).
Flammability
A waiver is proposed for this data requirement as the substance is a liquid.
Explosiveness
A waiver is proposed for this data requirement as the substance does not contain any chemical groups associated with explosive properties.
Oxidising properties
A waiver is proposed for this data requirement as the substance is incapable of reacting exothermically with combustible materials.
Stability in organic solvents
A waiver is proposed for this data requirement as the test substance as manufactured does not include an organic solvent and it is not formulated as an organic solution in any products.
Dissociation constant
A waiver is proposed for this data requirement as the substance does not contain any ionisable functionality.
Viscosity
The viscosity of 2,3-dichloro-1,3-butadiene is reported to be 0.898 mPa·s at 20 °C and 0.876 mPa·s at 40 °C (Currenta 2010).
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.
![ECHA](/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/echa_logo.png)