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EC number: 217-315-6 | CAS number: 1809-14-9
- 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
Hydrolysis
Administrative data
Link to relevant study record(s)
Description of key information
The hydrolysis of Dioctyl phosphonate at room temperature doesn't occur in short time period (3 days) and also at high temperature its hydrolysis is not fast and it is not complete (after 3 days at T=50 °C 92.77 % of starting material Dioctyl phosphonate was found and only 0.77 % of octyl alcohol was present in solution. The remaining portion 6.46 % was probably the monooctyl phosphite).
Key value for chemical safety assessment
Additional information
This study was performed as preliminary test to evaluate the hydrolysis of test item. According to the REACH Regulation (EC n. 1907/2006), Annex VIII, Column 2 the hydrolysis study is not necessary if the substance is readily biodegradable. Dioctyl phosphonate is ready-biodegradable and the hydrolysis study is not required. However this specific experiment was performed to quantify the rate and the percentage of the fully hydrolysis process. The hydrolysis of test item was investigated with two analytical methods because of the different nature of the two complete hydrolysis products: HPLC-IC and GC-FID analysis were performed to quantify respectively free phosphites and octyl alcohol. The hydrolysis of Dioctyl phosphonate at room temperature doesn't occur in short time period (3 days) and also at high temperature its hydrolysis is not fast and it is not complete (after 3 days at T=50 °C 92.77 % of starting material Dioctyl phosphonate was found and only 0.77 % of octyl alcohol was present in solution. The remaining portion 6.46 % was probably the monooctyl phosphite).
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