Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 252-161-3 | CAS number: 34708-08-2
- 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
Abiotic degradation
Triethoxy(3-thiocyanatopropyl)silane (CAS 34708-08-2; EC No. 252-161-3) has a hydrolysis half-life of 23 hours at 25°C and pH 7 (measured).
The hydrolysis products are (3-thiocyanatopropyl)silanetriol and ethanol (CAS 64-17-5; EC No. 200-578-6).
Half-lives of 0.5 days and 0.7 days for reaction with hydroxyl radicals in air have been calculated for triethoxy(3-thiocyanatopropyl)silane and (3-thiocyanatopropyl)silanetriol, respectively.
Biotic degradation
53% biodegradation in 28 days was attained in a reliable ready biodegradation study conducted according to an appropriate test protocol, and in compliance with GLP. This biodegradation is attributable to the biodegradation of the ethanol hydrolysis product, which is readily biodegradable (OECD 2004). No significant biodegradation is expected for the silanol hydrolysis product.
It is not necessary to obtain further information on biodegradation via simulation tests in water, sediment or soil.
Table 4.1.4: Degradation rates
Degradation rate in water: | Hydrolysis half-life: 23 h at 25°C and pH 7. No significant biodegradation expected for the silanol hydrolysis product. |
Degradation rate in sediment: | Hydrolysis may occur (hydrolysis half-life in water 23 h at 25°C and pH 7). No significant biodegradation expected for the silanol hydrolysis product. |
Degradation rate in soil: | Hydrolysis may occur (hydrolysis half-life in water 23 h at 25°C and pH 7). No significant biodegradation expected for the silanol hydrolysis product. |
Degradation rate in air: | Half-life for reaction with hydroxyl radicals in air: 0.5 days for the parent substance and 0.7 days for the silanol hydrolysis product (calculated). |
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.