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Diss Factsheets
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EC number: 922-551-4 | CAS number: 1187440-66-9
- 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
Some information in this page has been claimed confidential.
Administrative data
- Endpoint:
- hydrolysis
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 17 September 2008 to 01 October 2008
- Reliability:
- 2 (reliable with restrictions)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 008
Materials and methods
- Principles of method if other than guideline:
- Principle of test:
The hydrolysis as a function of pH of the test material has been assessed.The methodology assessed was found in the current OECD Guidelines for Testing of Chemicals.
Testing was not carried out according to Method 111 of the OECD Guidelines for Testing of Chemicals, 13 April 2004 for the following reasons:
The test material is a complex mixture and the hydrolysis guidelines are not suitable for assessment of mixtures. Injections of test material in tetrahydrofuran:water (90:10 v/v) on an Agilent 1200 LC-MS with electrospray in negative mode confirmed the presence of a complex composition and was unable to identify the individual components.- GLP compliance:
- no
Test material
- Details on test material:
- Description : white flakes
Batch numbers : T71241 and T80821
Storage conditions : room temperature in the dark
Constituent 1
- Specific details on test material used for the study:
- SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: Batch numbers: T71241 and T80821
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: The test item was stored at room temperature in the dark
Results and discussion
- Preliminary study:
- Due to low solubility in aqueous media, assessment of hydrolytic stability was not carried out using Method 111 of the OECD Guidelines.
- Test performance:
- Functional groups of the substance are an alkyl phosphate ester and alcohol. The alcohol group, being part of a C20/C22 fatty alcohol, would not be expected to hydrolyse under the test method parameters of pH 4 to pH 9. The fatty alcohol accounts for 40 % to 50 % of the test material composition.
The phosphate ester group occurs in the mono-ester and a di-ester which have C20/C22 alkyl chains from the fatty alcohol. The esters account for 50 % to 60 % of the test material composition. Phosphate esters will hydrolyse in aqueous media, although hydrolysis of the test material may be minimal in the pH range of 4 to 9 and at 25 °C due to the low solubility of the individual components and possible formation of micelles, as the structures are typical of that of a surfactant. These would possibly aid stability as attack would be stearically hindered by the proximity of grouped molecules. No estimated rates of hydrolysis could be sourced from available literature sources. - Transformation products:
- not measured
Dissipation DT50 of parent compound
- Key result
- Remarks on result:
- not determinable because of methodological limitations
Any other information on results incl. tables
Testing was not carried out according to Method 111 of the OECD Guidelines for Testing of Chemicals, 13 April 2004 for the following reasons:
The test material is a complex mixture and the hydrolysis guidelines are not suitable for assessment of mixtures. Injections of test material in tetrahydrofuran:water (90:10 v/v) on an Agilent 1200 LC-MS with electrospray in negative mode confirmed the presence of a complex composition and was unable to identify the individual components.
The alcohol group would not be expected to hydrolyse under the test method parameters of PH 4 to PH 9.
Phosphate esters will hydrolyse in aqueous media.
Applicant's summary and conclusion
- Conclusions:
- The alcohol group would not be expected to hydrolyse under the test method parameters of PH 4 to PH 9.
Phosphate esters will hydrolyse in aqueous media. - Executive summary:
Testing was not carried out according to Method 111 of the OECD Guidelines for Testing of Chemicals, 13 April 2004 for the following reasons:
The test material is a complex mixture and the hydrolysis guidelines are not suitable for assessment of mixtures. Injections of test material in tetrahydrofuran:water (90:10 v/v) on an Agilent 1200 LC-MS with electrospray in negative mode confirmed the presence of a complex composition and was unable to identify the individual components.
The alcohol group would not be expected to hydrolyse under the test method parameters of PH 4 to PH 9.
Phosphate esters will hydrolyse in aqueous media.
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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