Registration Dossier
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EC number: 212-081-1 | CAS number: 760-67-8
- 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

Endpoint summary
Administrative data
Description of key information
Additional information
Stability
Parent compound: 2 -Ethylhexanoyl chloride is expected to hydrolyse in less than 12 hours.
Hydrolysis product: 2 -Ethylhexanoic acid is considered as hydrolytically stable.
In air, 2 - is expected to be photodegraded by OH-radicals with a half-life of 26.6 h (BASF AG, 2008).
Hydrolysis product: 2-ethylhexanoic acid: A half-life of 47 h was calculated for the degradation in the atmosphere by OH-radicals (BASF SE, 2009).
Biodegradation
Parent compound: no reliable data are available.However, the test substance is expected to hydrolyse rapidly (t1/2 < 10 min) to form 2 -ethylhexanoic acid. Therefore data on the biodegradation of 2 -ethylhexanoic acid are presented.
The hydrolysis product 2-ethylhexanoic acid is readily biodegradable according to OECD criteria (EKO LAB, 1998).
Regarding the hydrolysis products HCl and CO2, biodegradation is not applicable due to the inorganic character of these molecules. Regarding biodegradation in soil or sediment there are no data available.
Bioaccumulation
Based on the log Pow of 2.4 calculated for 2-ethylhexanoyl chloride bioaccumulation is not to be expected in aquatic organisms. However the test substance rapidly hydrolyses and forms 2-ethylhexanoic acid which has a log Pow of 2.9 (BASF SE, 2009). This value refers to the uncharged molecule, however, 2-ethylhexanoic acid has log D values between 2.8 and -1.3 in a pH range from 4 to 9. Therefore, bioaccumulation is not expected in aquatic organisms.
Transport and distribution
Based on its calculated log Koc of 1.45 to 2.02 (Koc = 28 to 105; BASF SE, 2009), adsorption of 2 -ethylhexanoyl chloride to soil and sediment is not expected. However, 2 -ethylhexanoyl chloride is expected to hydrolyse rapidly and form 2 -ethylhexanoic acid.
The hydrolysis product 2 -ethylhexanoic acid has a calculated log Koc of 2.69 (value refers to the charged molecule at pH 7.00; BASF SE, 2010). Therefore, adsorption to solid soil phase is not expected.
A high Henry's Law Constant (HLC) of 369 Pa m³/mol was estimated for 2-ethylhexanoyl chloride, indicating rapid volatilization from surface waters (BASF SE, 2009). However, it is hydrolysed to 2-ethylhexanoic acid, CO2and HCl. The HLC for 2-ethylhexanoic acid was determined experimentally to be 0.289 Pa m³/mol, indicating slow volatilization from surface waters (BASF SE, 2009).
Following Mackay Level I calculations, the parent compound will preferentially distribute into the compartment air (73 %) (BASF SE, 2009). Following Mackay Level I calculations for the hydrolysis product 2-ethylhexanic acid, the substance is expected to preferentially distribute into the compartments water (85%) (BASF SE, 2009).
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