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EC number: 616-248-3 | CAS number: 75627-31-5
- 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)
Description of key information
The adsorption coefficient (Koc) of the substance was determined in a test according to OECD TG 121. Koc was determined at pH 5.5 and 7.5 for soil and sewage sludge. The Koc soil was determined as 316 L/kg at pH of 7.5. The Koc sewage sludge was determined as 251 L/kg at pH 7.5
Key value for chemical safety assessment
- Koc at 20 °C:
- 316
Other adsorption coefficients
- Type:
- other: Koc sewage sludge
- Value in L/kg:
- 251
- at the temperature of:
- 20 °C
Additional information
The adsorption coefficient (KOC) on soil and sewage sludge using high performance liquid chromatography (HPLC) was estimated according to OECD 121 and Council Regulation (EC) No. 440/2008, Method C.19 for the test item nonylphenolethoxylate, sarcosine derivative.
The test was considered fully valid (GLP, reliability 1) as all validity criteria were fulfilled, including complete identification of the test substance. The test was performed at pH 5.5 taking into account the zwitterionic form and at pH 7.5, taking into account both the zwitterionic and the anionic form. Calibration was performed using seven reference items for soil and six for sewage sludge with known values of log Koc. The dead time of the HPLC system was determined threefold using 10 mg/L sodium nitrate.
Two peaks were detected in the chromatograms of the test item.The first peak was identified as the main component (accounting for 70% of the test item). Based on the calibration curves for soil and sewage sludge under the two different pH-conditions the log Koc and Koc values described in the Table were obtained.
Determined Values of logKOC and KOC
The estimated values of log Koc and Koc for pH 5.5 (zwitterionic form): |
||||
Nonylphenol ethoxylate, sarcosine derivative |
Soil |
Sewage Sludge |
||
log Koc, soil |
Koc, soil |
log Koc, sewage sludge |
Koc, sewage sludge |
|
1st (Main) Component |
3.9 ± 0.2 |
7943 |
3.8 ± 0.3 |
6310 |
2nd Component |
4.5 ± 0.3 |
31623 |
4.5 ± 0.4 |
31623 |
The estimated values of log Koc and Koc for pH 7.5 (anionic and zwitterionic form): |
||||
Nonylphenol ethoxylate, sarcosine derivative |
Soil |
Sewage Sludge |
||
log Koc, soil |
Koc, soil |
log Koc, sewage sludge |
Koc, sewage sludge |
|
1st (Main) Component |
2.5 ± 0.1 |
316 |
2.4 ± 0.2 |
251 |
2nd Component |
3.9 ± 0.2 |
7943 |
3.9 ± 0.3 |
7943 |
The Koc of 316 (log Koc 2.5) determined for soil at pH 7.5 and the Koc of 251 (log Koc 2.4) determined for sewage sludge at pH 7.5 are considered representative for the substance and are used for further calculations in the risk assessment.
[LogKoc: 2.5]
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