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Diss Factsheets
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EC number: 246-998-3 | CAS number: 25448-25-3
- 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
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- no data: aquatic toxicity unlikely
Marine water
- Hazard assessment conclusion:
- no data: aquatic toxicity unlikely
STP
- Hazard assessment conclusion:
- no data: aquatic toxicity unlikely
Sediment (freshwater)
- Hazard assessment conclusion:
- no data available: testing technically not feasible
Sediment (marine water)
- Hazard assessment conclusion:
- no data available: testing technically not feasible
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- no data available: testing technically not feasible
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Given the rapid hydrolysis and extremely low estimated water solubility level for this substance it is not possible to conduct aquatic toxicity studies on it. The primary hydrolysis product, isodecyl alcohol, is separately registered and PNECs for it were used in this assessment. Since the PNECs for the hydrolysis products are orders of magnitude higher than the water solubility limit of triisodecyl phosphite, the conclusion is that the substance is not toxic to aquatic life.
Substance: 271-234-0 / 68526-85-2 / Isodecanol
REACH registration number for Exxal 10 by ExxonMobil :
01-2119449807-26-0000
6 Ecotoxicological Information
Endpoint summary: Ecotoxicological Information/Isodecanol/68526-85-2
PNEC aqua (freshwater): 0.4 mg/L
assessment factor - 1
Extrapolation method: assessment factor
Simple non-polar narcotic mixture of alcohol isomers. 3 long-term endpoints.
PNEC aqua (marine waters): 0.4 mg/L
Assessment factor - 1
Extrapolation method: assessment factor
Simple non-polar narcotic mixture of alcohol isomers. 3 long-term endpoints.
PNEC aqua (intermittent releases): 2.78 mg/L
Assessment factor - 1
Extrapolation method: assessment factor
Simple non-polar narcotic mixture of alcohol isomers. 3 acute endpoints.
PNEC STP: 4.3 mg/L
Assessment factor - 10
Extrapolation method
assessment factor
The PNEC for sewage treatment plant was determined using the NOEC for an STP inoculum from a ready
biodegradation test.
PNEC sediment: 117 mg/kg sediment dw
Assessment factor: 1
Extrapolation method: assessment factor
Environmental classification justification
Experimental sediment toxicity data for isodecanol are not available. PNECs for the sediment compartment were
derived based on the results from three long-term endpoints representing three trophic levels, as well as the
Equilibrium Partitioning Method.
PNEC soil: 95 mg/kg soil dw
Assessment factor: 1
Extrapolation method: assessment factor
Isodecanol is expected to have a low potential to produce toxicity in terrestrial species (earthworm and plants),
based on (Q)SAR predictions and the Equilibrium Partitioning Method.
PNEC oral in 22.22 kg/kg food
Assessment factor: 90
Based on a 13 week rat NOAEL of 100 mg/kg/d with iso-undecanol. Conversion factor for rats used was 20
bw/dwi. Assessment factor for 90 day study used (90). Results have been reported in mg/kg food.
Secondary poisoning for alcohols, C9 -11 -iso, C10 -richisnot expected based on results from
bioconcentration studies asdescribed in Section 4.3.1.2and evidence of biotransformation and
metabolism as reported by deWolf and Parkerton (1999).
Alcohols, C9 -11 -iso, C10 -richis not classified and labeled for the environment based on available toxicity data
and ready biodegradability.
Conclusion on classification
Substance is not toxic to the aquatic environment based on its very low water solubility and the fact that resulting concentrations of hydrolysis products (isodecanol and phosphorus acid) are orders of magnitude lower than toxicity values for the hydrolysis products.
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.
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