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EC number: 240-994-5 | CAS number: 16926-87-7
- 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
Partition coefficient
Administrative data
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- The study was conducted between 27 December 2017 and 03 January 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
- Deviations:
- no
- GLP compliance:
- no
- Remarks:
- The report states that the date contained in the report was generated in a laboratory holding a current statement of GLP compliance but not as part of a formal GLP study
- Type of method:
- flask method
- Partition coefficient type:
- octanol-water
Test material
- Reference substance name:
- 2-hydroxy-3-phenoxypropyl methacrylate
- EC Number:
- 240-994-5
- EC Name:
- 2-hydroxy-3-phenoxypropyl methacrylate
- Cas Number:
- 16926-87-7
- Molecular formula:
- C13H16O4
- IUPAC Name:
- 2-hydroxy-3-phenoxypropyl 2-methylprop-2-enoate
- Test material form:
- liquid
Constituent 1
- Specific details on test material used for the study:
- SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: 170740
Study design
- Analytical method:
- liquid chromatography
Results and discussion
Partition coefficient
- Key result
- Type:
- log Pow
- Partition coefficient:
- 2.43
- Temp.:
- 25 °C
- pH:
- ca. 8.03
Any other information on results incl. tables
System suitablility
1) Diluent Interferences/Blank Injection
The diluent blank immediately preceeding the first standard injection contains no peak co-eluting with PHPM and is therefore acceptable.
2) Repeatability of 6 injections of 10 mg/L STD5 - Peak Area and Peak Retention Time
The % RSD of peak area for six injections of Standard 5 was 0.45% i.e. less than 5% nominal acceptance criteria.
The % RSD of retention time for six injections of Standard 5 was 0.11% i.e. less than 1% nominal acceptance criteria.
3) Standard agreement
The % standard agreement was calculated from the peak area of the check standard solution. Standard recoveries throughout the sequence were all within 100% +/- 20 % and were therefore considered acceptable.
4) Calibration Curve
Shown in the attached report
Results
Results Table for Partition Coefficient solutions
Sample results – Partition Coefficient |
|||
Sample Name |
RT |
Area |
Amount (ppm) |
Stock 1 |
6.420 |
431372 |
2003.022 |
Stock 2 |
6.418 |
359897 |
1003.226 |
Stock 3 |
6.421 |
429786 |
498.910 |
Octanol 1A |
6.428 |
460339 |
2137.839 |
Octanol 1B |
6.427 |
459257 |
2134.059 |
Octanol 2A |
6.426 |
371397 |
1035.371 |
Octanol 2B |
6.423 |
385166 |
1073.860 |
Octanol 3A |
6.421 |
428136 |
496.991 |
Octanol 3B |
6.415 |
422228 |
490.117 |
Water 1A |
6.464 |
210162 |
7.788 |
Water 1B |
6.464 |
209900 |
7.778 |
Water 2A |
6.463 |
106568 |
3.931 |
Water 2B |
6.462 |
105299 |
3.884 |
Water 3A |
6.460 |
52600 |
1.921 |
Water 3B |
6.463 |
52521 |
1.918 |
Calculation of partition coefficient is detailed on page 17 of the attached report.
Test solution recoveries (Total number of mg recovered/ Weight of sample (mg) * 100) were between 83.9 and 91.3%.
Note: dilution factor has already been accounted for in this table of calculation therefore the n-octanol layers were treated as analysed undiluted.
The stability of Stock Solutions 1,2 and 3 from which the test solutions were prepared was checked alongside the test solution analysis.
The values obtained were compared with the theoretical concentrations of the solutions adjusted for the area % of the specific component.
A value of 2003.0 mg/L was determined for Stock Solutions 1. Comparison of this value with the theoretical concentrations of the solution (2356 mg/L) indicated an 85 % recovery.
A value of 1003.2 mg/L was determined for Stock Solutions 2. Comparison of this value with the theoretical concentrations of the solution (1178 mg/L) indicated an 85.1% recovery.
A value of 498.9 mg/L was determined for Stock Solutions 3. Comparison of this value with the theoretical concentrations of the solution (589 mg/L) indicated an 84.7% recovery.
During review, it was noted that the Stock Solution recovery values were comparable to the Check Standard recovery. This indicates a difference between the Calibration Standard and the Check Standard and suggests that the Calibration Standard was incorrectly weighed/prepared, and was the source of the variation in recovery observed. This is not critical as log P determination is a ratio calculation and not quantitative. However the Stock Solution recovery values are more likely to be approximately 100%. This is also applicable to the Test Solution recoveries calculated from the test solution results.
For the Stock Solution, the recoveries obtained show good replication with the test solution recoveries indicating that no significant loss of test material has occurred during testing in the stock solutions, and therefore indicating that the test solutions were stable throughout the analysis.
Applicant's summary and conclusion
- Conclusions:
- A logP mean value of 2.43 was calculated, the individual values obtained were within +/- 0.3 log units of the mean value and therefore considered acceptable.
- Executive summary:
The partition coefficient of the substance was assessed in accordance with the Shake Flask Method (OECD 107) and analysed with LC-UV. A partition coefficient (log P) of 2.43 was calculated.
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