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EC number: 700-255-4 | CAS number: 31775-89-0
- 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
Adsorption / desorption
Administrative data
Link to relevant study record(s)
- Endpoint:
- adsorption / desorption: screening
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 09 Jan 2009
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 121 (Estimation of the Adsorption Coefficient (Koc) on Soil and on Sewage Sludge using High Performance Liquid Chromatography (HPLC))
- Version / remarks:
- adopted in 2001
- Deviations:
- yes
- Remarks:
- Test material components were only tested in their non-ionised forms
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.19 (Estimation of the Adsorption Coefficient (KOC) on Soil and Sewage Sludge Using High Performance Liquid Chromatography (HPLC))
- Version / remarks:
- adopted in 2008
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- The Department of Health of the Government of the United Kingdom, date of inspection 19 Aug 2008
- Type of method:
- HPLC estimation method
- Radiolabelling:
- no
- Test temperature:
- 40 ºC
- Details on study design: HPLC method:
- EQUIPMENT
- Apparatus: HPLC
- Type: Agilent Technologies 1100
- Type, material and dimension of analytical (guard) column: Zorbax SB CN 5 µm, 250 x 4.6 mm
- Detection system: UV detector, 210 nm standards, 220 nm samples
MOBILE PHASES
- Type: 55% acetonitrile/45% water (v/v)
- pH: 7.2
- Solutes for dissolving test and reference substances: acetonitrile
DETERMINATION OF DEAD TIME
- Method: The retention time of formamide (purity ≥ 99.5%, 1430 mg/L solution in mobile phase)
REFERENCE SUBSTANCES
- Identity: Acetanilide, Phenol, Atrazine, Isoproturon, Triadimenol, Linuron, Naphthalene, Endosulfan-diol, Fenthion, α-Endosulfan, Phenanthrene, Diclofop-methyl, DDT
DETERMINATION OF RETENTION TIMES
- Quantity of test substance introduced in the column: 20 µL of 1014 mg/L solution
- Quantity of reference substances: 20 µL of 100 to 139 mg/L solutions
REPETITIONS
- Number of determinations: 2 - Key result
- Type:
- Koc
- Value:
- 33 700
- Temp.:
- 40 °C
- Remarks on result:
- other: PEMB
- Key result
- Type:
- log Koc
- Value:
- 4.53
- Temp.:
- 40 °C
- Remarks on result:
- other: PEMB
- Key result
- Type:
- Koc
- Value:
- 1 050
- Temp.:
- 40 °C
- Remarks on result:
- other: PE3MB
- Key result
- Type:
- log Koc
- Value:
- 3.02
- Temp.:
- 40 °C
- Remarks on result:
- other: PE3MB
- Details on results (HPLC method):
- - Retention times of reference substances used for calibration: see Table 1
- Details of fitted regression line (log k' vs. log Koc): y = 0.249x - 0.713, r2 = 0.974
- Average retention data for test substance: Component A (PE3MB): 5.42 min, Component B (PEMB): 9.32 min
- Capacity factor for test substance: Component A (PE3MB): 1.096, Component B (PEMB): 2.602 - Transformation products:
- no
- Conclusions:
- The log Koc for the two components is as follows:
Component A (PE3MB): 3.02
Component B (PEMB): 4.53 - Executive summary:
Adsorption Coefficient: The adsorption coefficient was determined using the HPLC screening, Method C19 Adsorption Coefficient of Council Regulation (EC) No 440/2008 of 30 May 2008 and Method 121 of the OECD Guidelines for Testing of Chemicals, 22 January 2001.
The results are shown in the following table:
Component
Adsorption Coefficient
Log10 Koc
A
1.05 x 103
3.02
B
3.37 x 104
4.53
Reference
Table 1: Retention times of reference substances used for calibration
Standard |
Mean Retention Time (min) |
Log Koc |
Acetanilide |
3.362 |
1.25 |
Phenol |
3.462 |
1.32 |
Atrazine |
4.163 |
1.81 |
Isoproturon |
4.250 |
1.86 |
Triadimenol |
4.678 |
2.40 |
Linuron |
5.055 |
2.59 |
Naphthalene |
5.440 |
2.75 |
Endosulfan-diol |
5.113 |
3.02 |
Fenthion |
6.820 |
3.31 |
α-Endosulfan, |
8.694 |
4.09 |
Phenanthrene, |
7.056 |
4.09 |
Diclofop-methyl |
8.377 |
4.20 |
DDT |
12.840 |
5.63 |
Table 2: Data for Component A (PE3MB)
Injection |
Retention Time (min) |
Capacity Factor (k) |
Log10k |
Log10Koc |
1 |
5.423 |
1.095 |
3.94 x 10-2 |
3.02 |
2 |
5.429 |
1.097 |
4.04 x 10-2 |
3.02 |
Mean log10Koc: 3.02
Adsorption coefficient: 1.05 x 103
Table 3: Data for Component B (PEMB)
Injection |
Retention Time (min) |
Capacity Factor (k) |
Log10k |
Log10Koc |
1 |
9.318 |
2.600 |
0.415 |
4.53 |
2 |
9.328 |
2.604 |
0.416 |
4.53 |
Mean log10Koc: 4.53
Adsorption coefficient: 3.37 x 104
Description of key information
Log Koc = 4.53 at 40 °C (HPLC estimation method, OECD 121)
Key value for chemical safety assessment
- Koc at 20 °C:
- 33 700
Additional information
The adsorption/desorption potential of the test material was analysed in a HPLC screening study (key) following OECD guideline 121 and GLP (Showa Denko, 2009). The test substance was analysed for its elution behaviour by comparison to 13 reference substances unsing a HPLC method. According to the established calibration curve, the value for the log Koc of the test substance is 4.53 (Koc 33700).
[LogKoc: 4.53]
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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