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Diss Factsheets
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EC number: 478-210-0 | CAS number: 69901-75-3
- 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
Hydrolysis
Administrative data
- Endpoint:
- hydrolysis
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2007-01-12 to 2007-02-05
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP study performed according to OECD Guideline 111 (Hydrolysis as a Function of pH) and EU Method C.7 (Degradation: Abiotic Degradation: Hydrolysis as a Function of pH) without deviations.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 007
- Report date:
- 2007
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 111 (Hydrolysis as a Function of pH)
- Deviations:
- no
- Remarks:
- The testing facility indicated that the protocol was followed without deviation.
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.7 (Degradation: Abiotic Degradation: Hydrolysis as a Function of pH)
- Deviations:
- no
- Remarks:
- The testing facility indicated that the protocol was followed without deviation.
- Principles of method if other than guideline:
- Not applicable
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- The Department of Health of the Government of the United Kingdom
Test material
Reference
- Name:
- Unnamed
- Type:
- Constituent
- Details on test material:
- - Name of test material (as cited in study report): VRT-126016
- Molecular formula (if other than submission substance): not applicable
- Molecular weight (if other than submission substance): not applicable
- Smiles notation (if other than submission substance): not applicable
- InChl (if other than submission substance): not applicable
- Structural formula attached as image file (if other than submission substance): not applicable
- Substance type: no data
- Physical state: white to off-white powder
- Analytical purity: 99.8 area% by High Performance Liquid Chromatography (HPLC)
- Impurities: chloride: <0.1%
- Composition of test material, percentage of components: no data
- Isomers composition: no data
- Purity test date: 2006-02-02
- Lot/batch No.: 25719
- Expiration date of the lot/batch: February 2008
- Stability under test conditions: no data
- Storage condition of test material: at room temperature
- Other: no data
- Specific details on test material used for the study:
- Details on properties of test surrogate or analogue material (migrated information):
Not applicable - Radiolabelling:
- no
Study design
- Analytical monitoring:
- yes
- Details on sampling:
- - Sampling intervals for the parent/transformation products: 5 minutes, 2.4 h, 120 h
- Sampling method: Duplicate 1 mL aliquots of test solution were added to separate 100mL Wheaton vials containing each buffer solution (100mL), which had been purged with nitrogen and equilibrated to test temperature. Samples were placed in the waterbath at 50 deg C in the dark until sampling was required. At each sampling time, an aliquot was diluted to 10 mL with mobile phase for HPLC analysis.
- Sampling methods for the volatile compounds, if any: not applicable
- Sampling intervals/times for pH measurements: not applicable
- Sampling intervals/times for sterility check: not applicable
- Sample storage conditions before analysis: not applicable
- Other observation, if any (e.g.: precipitation, color change etc.): not applicable - Buffers:
- - pH: 4.0
- Type and final molarity of buffer: Potassium dihydrogen orthophosphate; molarity not provided
- Composition of buffer: Potassium dihydrogen orthophosphate (6g), and disodium orthophosphate dodecahydrate (12.8 g), in 1900 mL puified water, pH adjusted to 4.0 +/- 0.05 with orthophosphoric acid, and brought to 2 L with purified water.
- pH: 7.0
- Type and final molarity of buffer: Potassium dihydrogen orthophosphate; molarity not provided
- Composition of buffer: Potassium dihydrogen orthophosphate (27 g) in 3800 mL purified water, 120 mL 1M sodium hydroxide, pH adjusted to 7.0 +/- 0.05 with 1M HCl. Brought to 4L with purified water.
- pH: 9.0
- Type and final molarity of buffer: Disodium tetraborate decahydrate; molarity not provided
- Composition of buffer: Disodium tetraborate decahydrate (66.4 g), Potassium dihydrogen orthophosphate (7.2 g) in 3800 mL purified water, pH adjusted to 9.0 +/- 0.05 with 1M HCl. Brought to 4L with purified water. - Estimation method (if used):
- not applicable
Duration of testopen allclose all
- Duration:
- 120 h
- pH:
- 4
- Initial conc. measured:
- 101 mg/L
- Duration:
- 120 h
- pH:
- 7
- Initial conc. measured:
- 103 mg/L
- Duration:
- 120 h
- pH:
- 9
- Initial conc. measured:
- 105 mg/L
- Number of replicates:
- The test was run in duplicate.
- Positive controls:
- no
- Negative controls:
- no
- Statistical methods:
- Not applicable
Results and discussion
- Preliminary study:
- Results from the preliminary investigation showed that there was no significant change in the concentration of the test substance when incubated in pH 4, 7 and 9 buffer solution at 50 +/- 0.5 deg C. Less than 10% hydrolysis had occurred after 120 hours (5 days) under these conditions, equivalent to a half-life of greater than 1 year under environmental conditions (25 deg C).
- Test performance:
- No further testing was required beyond the preliminary study.
- Transformation products:
- no
- Details on hydrolysis and appearance of transformation product(s):
- - Formation and decline of each transformation product during test: not applicable
- Pathways for transformation: not applicable
- Other: not applicable
- Other kinetic parameters:
- Not applicable
- Details on results:
- Not applicable
Any other information on results incl. tables
This preliminary study showed that at pH 4, 7, and 9, and at 50 deg C, less than 10% hydrolysis occurred after 120 hours, equivalent to a half life of greater than 1 year under environmental conditions. The test substance was determined to be hydrolytically stable under acidic, neutral and basic conditions. Per the method, no addition testing is required.
Applicant's summary and conclusion
- Conclusions:
- The test substance was determined to be hydrolytically stable under acidic, neutral, and basic conditions.
- Executive summary:
Not applicable
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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