Registration Dossier
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Diss Factsheets
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EC number: 422-350-7 | CAS number: 5575-48-4
- 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
Endpoint summary
Administrative data
Description of key information
The toxicity to the aquatic environment of Decyltrimethoxysilane was investigated in accordance with Annex VII of REACH by performing GLP-compliant short-term toxicity studies to freshwater aquatic invertebrates and algae.
Daphnia magna was identified as the most sensitive species based on the outcome of the studies with a 48h EC50 of 75.338 mg/L. Considering that the lowest L(E)C50 for Decyltrimethoxysilane is above 1 mg/L, the substance does not meet the criteria for classification as Aquatic Acute 1; H400 in accordance with Regulation (EC) N°1272/2008.
There is no available data on the chronic toxicity of Decyltrimethoxysilane to the aquatic environment. As the substance is being registered under REACH in the 1-10 tonnage band there is no requirement for information on long-term toxicity to aquatic species. Therefore the classification of the registered substance for chronic effects is based on the short-term toxicity of Decyltrimethoxysilane to the aquatic environment and its ready biodegradability.
The ready biodegradation study performed on Decyltrimethoxysilane concluded that the substance was degraded at 55% after 21 days. Therefore it is not considered as rapidly biodegradable.
Considering that the lowest L(E)C50 for Decyltrimethoxysilane is between 10 and 100 mg/L and the substance is not rapidly biodegradable, Decyltrimethoxysilane meets the criteria for classification as Aquatic Chronic 3; H412 in accordance with Regulation (EC) N°1272/2008.
Additional information
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.