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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 931-740-0 | CAS number: -
- 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
Endpoint summary
Administrative data
Description of key information
Additional information
The substance distillation residue, butyl alcohols production, rectification is a UVCB-substance composing of several not easily identifiable substances. Only one of the constituent, 2 –ethylhexanol, can be analytically quantified (typical concentration range 20 -30 %). Due to the complex composition of the substance there are a lot of technical difficulties related to the testing. The biodegradation highly depends on the biodegradation of the individual components. Different constituents have different physical chemical properties (i.e. water solubility, vapour pressure, octanol/water partition coefficient) that might have an effect on the overall biodegradation of the substance in water and soil.
Because the composition of the substance is not easily identifiable, application of read-across method in order to evaluate the overall fate and pathways was regarded unsuitable. The need for further investigations of the substance biodegradation in soil, surface waters and sediments was evaluated based on the existing experimental physicochemical data ((1) water solubility, (2) vapour pressure, (3) Kowpartition coefficient and (4) hydrolysis). In addition, (5) ready biodegradation screening test results in water and (6) aquatic toxicity data were used to evaluate the biodegradation of the UVCB-substance.
1) The substance is water soluble (2-9 g/l) but most probably also contains constituents having low solubility in water.
2) The substance is non volatile at room temperature (< 0.01 Pa).
3) The substance indicated peaks corresponding the constituents having log Kow values of 1.8 to 5.8, but also constituents corresponding the log Kow values of 6.4 up to 7. (HPLC method).
4) The substance is hydrolytically stable and the half-life estimated by the preliminary study (OECD 111) at three pH-values is over one year.
5) The biodegradation of the substance in water was determined by using OECD guideline method 301B. According to the test results, the substance is inherently biodegradable. The substance was biodegradable (degradation within 28 days was 49.6 %) but was failing the 10 -days window. There might be some uncertainties related to the results. The differences in physical chemical properties of the constituents (i.e. solubility, vapour pressure) might have an influence on the overall biodegradation of the substance.
6) The substance was not an inhibitory to activated sludge microorganisms at maximum test concentration of 100 mg/l.
As a conclusion on the biodegradation, the substance might contain more easily biodegradable substances but also constituents that are not readily biodegradable. The one quantified constituent (at range of 20 -30%) is regarded as readily biodegradable. The possibility of the substance not being biodegradable in water or soil cannot be neglected when considering the environmental fate and pathways of the 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.