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EC number: 232-136-3 | CAS number: 7787-93-1
- 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
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
72 h ErC50: 437 mg/l S. subspicatus (read-across from CAS 13501-76-3), or 321 mg/l when expressed in terms of the silanol hydrolysis product (3-chloropropyl)methylsilanediol.
72 h NOEC: 57 mg/l S. subspicatus (read-across from CAS 13501-76-3), or 42 mg/l when expressed in terms of the silanol hydrolysis product (3-chloropropyl)methylsilanediol.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 321 mg/L
- EC10 or NOEC for freshwater algae:
- 42 mg/L
Additional information
There are no reliable data for the effects of the registered substance on growth of aquatic algae. A 72-hour EC50 value of 437 mg/L and NOEC of approximately 57 mg/L have been determined for the effects of the structurally analagous substance (3-chloropropyl)diethoxtmethylsilane (13501-76-3) on growth rate of Scenedesmus subspicatus. The results are interpreted with reference to nominal concentrations of the test substance. However it is likely that the test organisms were predominantly exposed to the hydrolysis products of the substance during the study, and not the parent compound. This is because the substance hydrolyses in water, as indicated by the DOC concentrations in the stock solution. The test media preparation included a stirring period of 18 h and the exposure regime was static.
The results may be expressed in terms of concentration of the hydrolysis product, (3-chloropropyl)methylsilanediol, by applying a molecular weight correction: (MW of silanol = 154.67 / MW of parent = 210.78) * EC50 = 437 mg/l and NOEC = 57 mg/l = EC50 321 mg/l and NOEC 42 mg/l as (3-chloropropyl)methylsilanediol.
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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