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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 271-085-1 | CAS number: 68515-43-5
- 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://poisoncentres.echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_environmental-fate-and-pathways.png)
Endpoint summary
Administrative data
Description of key information
Additional information
Stability
Phototransformation in air
Stability of the substance in the atmosphere was calculated using the software AOPWIN (v 1.92). It is predicted that the substance will be degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals. The half-life for this reaction in air is estimated to be between 4.6 and 13.8hours, at different test conditions.The most conservative value was selected.
Hydrolysis
In accordance with REACH Regulation 1907/2006, Annex VIII, Column 2 hydrolysis as a function of pH does not need to be determined as the substance is readily biodegradable.
Stability of the substance against hydrolysis was calculated using the computer program HYDROWIN (v 2.00). A base-catalysed second-order hydrolysis rate constant of 0.03486L/mole-sec was estimated using a structure estimation method. This corresponds to half-lives of6.3 years at pH 7 and 230.2 days at pH 8.
Biodegradation
Ready biodegradability has been investigated in a modified Sturm test conducted according to OECD Test Guideline No. 301 B. 10% degradation (beginning of biodegradation) occurred after 9 -10 days and the 60% pass level was achieved within the 10 -day-window. The substance is thereforeregarded asreadily biodegradable.
A second test, conducted as a modified MITI Test reported in the literature describes the substance as being only inherently biodegradable.
Bioaccumulation
BCF has been calculated using the computer program BCFBAF (v3.01). It is predicted that the substance has BCF of 777 L/kg wet weight.It is therefore concluded that the potential for bioaccumulation of 1,2-Benzenedicarboxylic acid, di-C9-11-branched and linear alkyl esters (DIPLAST L 9 -11) is low.
A phthalate ester with branched (as opposed to linear alcohol chains) has undergone risk assessment (European Union Risk Assessment Report on 1,2-benzenedicarboxylic acid, di-C9-11-branched alkyl esters, C10-rich and di-“isodecyl” phthalate,Final Report, 2003).The report considers bioaccumulation in aquatic organisms and cites a single test where a BCF of < 14.4 was determined for fish (Cyprinus carpio) according to OECD test guideline No. 305C. In the same test system, a BCF of 1.3-29.7 was determined for DEHP. The authors comments that higher BCFs have been determined with DEHP in fish in other assays and that the only BCF result available for the substance with fish is very low compared with the results available for DEHP. As a result the BCF for fish of 840 retained for the risk assessment of DEHP was used for the assessment of the exposure of humans via the environment of the substance. This value is similar to that calculated for1,2-Benzenedicarboxylic acid, di-C9-11 -branched and linear alkyl esters and the calculated value may therefore be regarded as reasonable.
Transport and distribution
Adsorption / desorption
The adsorption coefficient (Koc) on soil and on sewage sludge using high performance liquid chromatography (HPLC) has been estimated for a phthalate ester with C-11 chain length. Adsorption coefficients were estimated to be log Koc soil = 21.41 and log Koc sewage sludge = 23.21.
The adsorption coefficient (Koc) on soil and on sewage sludge using high performance liquid chromatography (HPLC) has also been determined for a phthalate ester with C-6 to C-10 chain length. Adsorption coefficients were estimated to be log Koc soil = 5.55-10.37 and log Koc sewage sludge = 6.29-12.09.
In addition the adsorption coefficient (Koc) of the substance, a phthalate ester with chain length of C9 to C-11, has been estimated using calculation methods to yield a log Koc of 6.397. This value is lower than that obtained experimentally on two analogous substances and is likely to be an under-estimate.
In all cases, the McCall classification scheme classifies the substances as immobile in soil (Koc > 5000).
Henry's Law constant
The Henry's Law constant of 4.88 Pa-m3/mole indicates that the substance is moderately volatile from surface water.
Distribution modelling
Distribution in environmental compartments has been calculated using a Fugacity model according to Mackay, Level III. Distribution in various environmental compartments is estimated as:Air - 0.43%; Water - 3.5%; Soil - 27.2% and Sediment - 68.8%.
Sediment and soil were then found to be the major target compartments.
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)