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EC number: 205-491-7 | CAS number: 141-62-8
- 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
![](https://echa.europa.eu./o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_environmental-fate-and-pathways.png)
Endpoint summary
Administrative data
Description of key information
Additional information
Collection and analysis (for L4) of surface sediments and select biota from the aquatic food web was carried out as part of a 5-year monitoring programme for cyclic volatile methylsiloxane (cVMS) materials in the aquatic ecosystem. The data in Tables 4.2.3 and 4.2.4 are a summary of environmental monitoring data on L4, including studies from the first three years of this programme in two locations: Lake Ontario, Canada, and Lake Pepin, USA, the first two years of the programme in Oslo Fjord, Norway and from year one of the programme in Tokyo Bay..
L4 is present as an impurity and widely used in commercial products (e.g., personal care products). The main route of entry into the aquatic environment is via wastewater treatment plant effluents. Analytical measurement of trace levels of L4 in environmental samples is difficult due to its physical properties and uses, which can inadvertently lead to significant sample contamination. L4 is used in personal care products. Environmental samples can become compromised during all stages of field and laboratory work including sample collection, processing, extraction, and analysis. The environmental monitoring programmes reported here incorporate the use of rigorous protocols strictly prohibiting the use of personal care products by all field and laboratory personnel involved, as well as avoiding equipment containing silicone-based materials. This has led to lower analytical backgrounds, reduced potential for contamination, and thus greater confidence in the environmental monitoring results.
Table 4.2.3. Measured concentrations of L4 in sediment
Location |
Sampling year |
N (number of sample locations) |
L4[1] |
Comment |
Reference |
Sediment |
|
|
(ng/g dw) |
|
|
Canada, Lake Ontario |
2011 |
5 |
<MDL |
Sediment collected from locations within Hamilton Harbour (which receives WWTP effluent) and the main deep-water basin. Measured concentrations of L4 in sediment were below the MDL in all samples (LOD 7.8 ng, MDL 0.66 ng/g ww). Specific prohibition of PCP during collection, processing, or analysis of samples |
Dow Corning Corporation (2013b) |
Canada, Lake Ontario |
2012 |
5 |
<MDL |
Sediment collected from locations within Hamilton Harbour (which receives WWTP effluent) and the main deep-water basin. Measured concentrations of L4 in sediment were below the MDL in all samples (LOD 4.1 ng, MDL 0.75 ng/g ww). Specific prohibition of PCP during collection, processing, or analysis of samples |
Dow Corning Corporation (2014b) |
Canada, Lake Ontario |
2013 |
5 |
<MDL |
Sediment collected from locations within Hamilton Harbour (which receives WWTP effluent) and the main deep-water basin. Measured concentrations of L4 in sediment were below the MDL in all samples (LOD 3.5 ng, MDL 0.96 ng/g ww). Specific prohibition of PCP during collection, processing, or analysis of samples |
Dow Corning Corporation (2015a) |
USA, Lake Pepin, |
2011 |
12 |
<MDL |
Measured concentrations of L4 in surface sediment were below the MDL in all samples (LOD 7.8 ng, MDL 0.66 ng/g ww). Specific prohibition of PCP during collection, processing, or analysis of samples |
Dow Corning Corporation (2013a) |
USA, Lake Pepin, |
2012 |
13 |
<MDL |
Measured concentrations of L4 in surface sediment were below the MDL in all samples (LOD 4.1 ng, MDL 0.75 ng/g ww). Specific prohibition of PCP during collection, processing, or analysis of samples |
Dow Corning Corporation (2014a) |
USA, Lake Pepin |
2013 |
13 |
Not detected |
No quantifiable concentrations of L4 were found (LOD 3.5 ng, MDL 0.96 ng/g ww). Specific prohibition of PCP during collection, processing, or analysis of samples |
Dow Corning Corporation (2015b) |
Norway, Oslo Fjord |
2011 |
25 |
Not detected |
Mean measured concentrations of L4 were below the method detection limit in all sampled matrices. (LOD 3.1 ng, MDL 0.81 ng/g ww). Specific prohibition of PCP during collection, processing, or analysis of samples |
Evonik (2015) |
Norway, Oslo Fjord |
2012 |
25 |
Not detected |
Mean measured concentrations of L4 were below the method detection limit in all sampled matrices (LOD 1.3 ng, MDL 0.71 ng/g ww). Specific prohibition of PCP during collection, processing, or analysis of samples |
Evonik (2016) |
Japan, Tokyo Bay |
2014 |
20 |
<MDL |
Measured concentrations of L4 in surface sediment were below the MDL in all samples (LOQ 0.30 ng, MDL 0.10 ng/g ww). |
SIAJ, 2015 |
Table 4.2.4 Measured concentrations of L4 in biota
Description of samples |
Sampling year |
N (number of samples analysed) |
L41 |
Comment |
Reference |
Biota |
|
|
(ng/g ww) |
|
|
USA, Lake Pepin Zooplankton Mayfly larvae Gizzard shad Sauger |
2011 |
4 5 11 20 |
Not detected Not detected Not detected Not detected |
L4 not present at detectable concentrations in any of the sampled matrices (LOD 14.7 ng, MDL 1.78 ng/g ww). Specific prohibition of PCP during collection, processing, or analysis of samples |
Dow Corning Corporation (2013a) |
USA, Lake Pepin Mayfly larvae Gizzard shad Sauger Walleye |
2012 |
8 7 21 20 |
<MDL <MDL <MDL <MDL
|
Measured concentrations of L4 were below the MDL in all sampled matrices (LOD 6.8 ng, MDL 1.39 ng/g ww). Specific prohibition of PCP during collection, processing, or analysis of samples |
Dow Corning Corporation (2013c) |
USA, Lake Pepin Zooplankton Mayfly larvae Gizzard shad Sauger |
2013 |
8 8 10 20 |
Not detected Not detected <MDL Not detected |
Measured concentrations of L4 were below the MDL in all sampled matrices (LOD 6.4 ng, MDL 1.3 ng/g ww). Specific prohibition of PCP during collection, processing, or analysis of samples |
Dow Corning Corporation (2015b) |
Canada, Lake Ontario
Mysid shrimp Round goby Rainbow smelt Alewife Lake trout |
2011 |
4 12 9 5 19 |
Not detected Not detected Not detected Not detected Not detected |
L4 not present at detectable concentrations in any of the sampled matrices (LOD 14.7 ng, MDL 1.78 ng/g ww). Specific prohibition of PCP during collection, processing, or analysis of samples |
Dow Corning Corporation (2013b) |
Canada, Lake Ontario Mysid shrimp Round goby Rainbow smelt Alewife Lake trout |
2012 |
5 12 3 7 20 |
Not detected Not detected Not detected Not detected Not detected |
L4 not present at quantifiable concentrations in any of the sampled matrices (LOD 6.8 ng, MDL 1.39 ng/g ww). Specific prohibition of PCP during collection, processing, or analysis of samples |
Dow Corning Corporation (2014) |
Canada, Lake Ontario Mysid shrimp Round goby Rainbow smelt Alewife Lake trout |
2013 |
3 11 5 7 15 |
Not detected Not detected Not detected Not detected Not detected |
L4 not present at quantifiable concentrations in any of the sampled matrices. LOD 6.4 ng, MDL 1.3 ng/g ww. Specific prohibition of PCP during collection, processing, or analysis of samples |
Dow Corning Corporation (2015a) |
Norway, Oslo Fjord Cod Herring Shrimp |
2011 |
16 5 5 |
<MDL <MDL Not detected |
Mean measured concentrations of L4 were below the MDL in all sampled matrices (LOD 4.2 ng, MDL 0.73 ng/g ww). Specific prohibition of PCP during collection, processing, or analysis of samples |
Evonik (2015) |
Norway, Oslo Fjord Cod Herring Shrimp |
2012 |
20 20 6 |
<MDL <MDL Not detected |
L4 not present at quantifiable concentrations in any of the sampled matrices (LOD 1.8 ng, MDL 1.78 ng/g ww). Specific prohibition of PCP during collection, processing, or analysis of samples |
Evonik (2016) |
Japan, Tokyo Bay Japanese sea bass White croaker Japanese scaled sardine Red barracuda Japanese anchovy |
2014 |
9 9 4 9
|
<MDL <MDL <MDL <MDL
|
Measured concentrations of L4 were below the MDL in all sampled matrices (LOQ 3.0 ng, MDL 1.0 ng/g ww). |
SIAJ (2015) |
1'Not detected' indicates that no peak discernible from baseline was observed in the analysis.
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