Registration Dossier
Registration Dossier
Diss Factsheets
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EC number: 211-108-4 | CAS number: 629-78-7
- 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
Hydrolysis:
Further testing is not required. Based on the data presented in this dossier, substances Hydrocarbons, C14 -C20, aliphatics, ≤2% aromatics have been shown to be readily biodegradable. According to column 2 of Annex VII on the standard information requirements, hydrolysis studies do not need to be conducted if the substance is readily biodegradable. Moreover, hydrolysis is not expected to be a signifcant mechanism of degradation in the environment because the substances lack hydrolitically reactive functionnal groups. Therefore, it is not subject to hydrolysis and this process will not contribute to the degradative loss from the environment.
Biodegradation:
Based on the biodegradation results from relevant substances within Hydrocarbons, C14-C20, aliphatics (≤2% aromatics) were found to be readily biodegradable (biodegradation > 60% ThOD) in OECD 306 ready biodegradability tests. Taking into account that all those substances have been found biodegradable in the seawater 306 test, lead to the conclusion that all the substances with the same properties and are therefore considered readily biodegradable.
Bioaccumulation:
This endpoint is fulfilled for Heptadecane using quantitative structure property relationships for representative hydrocarbon structures. The BCFBAF 3.01 model is a well characterised and generally accepted bioaccumulation prediction model, used by the USEPA, the OECD and recommended by ECHA. The SMILES input data for the BCFBAF 3.01 model is obtained from the PETRORISK Product Library (see OECD QSAR Toolbox report in 'Attached full study report' and PETRORISK report attached in IUCLID section 13).
The calculated BCF of Heptadecane ranges from 47.79 - 3974.81 L/kg.
The BCFWIN v2.16 model within EPISuite 3.12 has been used to estimate the bioaccumulation potential of a representative substance. This data is used as a weight of evidence alongside the data reported above.
The calculated BCF of icosane is 22 L/kg cacluatedusing the BCFWIN v2.16 model within EPISuite 3.12. This value indicates that icosane is not considered a bioaccumulative substance.
Adsorption / desorption:
This endpoint is characterised for Heptadecane using quantitative structure property relationships for representative hydrocarbon structures that comprise the hydrocarbon blocks used to assess the environmental risk of this substance with the PETRORISK model (see Product Library in PETRORISK report attached in IUCLID section 13).
Adsorption coefficient has been calculated using Petrorisk. The Koc for Heptadecane ranges from 2.51 x10^5 - 1.38 x10^7.
The following data on other representative substances have been included as a weight of evidence. The data is estimated using the calculation in the Concawe Library of Petrorisk, using SPARC v4.2 program (May 2008).
Koc of the read-across substance icosane has been estimated by calculation in the Concawe Library of Petrorisk, using SPARC v4.2 program (May 2008). The calculated value is 1.84 x 1011L/kg, using a log Kow of 11.46. This result suggests that icosane is expected to be immobile in soil.
Additional information
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.

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