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EC number: 216-316-9 | CAS number: 1558-25-4
- 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
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Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
No biodegradation expected for trichloro(chloromethyl)silane (CAS No. 1558 -25-4).
Key value for chemical safety assessment
Additional information
No data is available for trichloro(chloromethyl)silane (CAS No. 1558 -25 -4). Trichloro(chloromethyl)silane hydrolysis results in chloromethylsilantriol and hydrochloric acid which is inorganic and will not be discussed. Silane, (chloromethyl)dimethoxymethyl- (CAS No. 2212-11-5) hydrolyses to the structurally-related silanol hydrolysis products (chloromethyl)methylsilanediol. The other hydrolysis products being methanol and ethanol, respectively, which are readily biodegradable. It is therefore considered valid to read-across the results for silane,(chloromethyl) dimethoxymethyl- to fill the data gap for the registered substance and ignoring for the conclusion the contribution of methanol to the biodegradation
In the study 30–34 % biodegradation was observed in 28 days. The study was conducted according to OECD guideline 301F and is considered reliable (IBACON, 2002). This is selected as the key study. The study is considered to be reliability 1 (reliable without restrictions).
Taking into account the contribution of methanol to the biodegradation no biodegradation can be expected fortrichloro(chloromethyl)silane (CAS No. 1558 -25).
This is further supported by the following overview on the wider group of chloralkylsilanes.
CAS |
Name |
Readily biodegradable? Yes/no |
Result: Biodegradation after 28 day |
Guideline |
Reliability |
Corrected % biodegradation once alkoxy/acetoxy biodegradation is accounted for |
002212-11-5 |
Silane, (chloromethyl)dimethoxymethyl- |
No |
30-34% |
OECD 301F |
1a |
-16 |
007787-93-1 |
Dichloro(3-chloropropyl)methylsilane |
No |
0% |
EC C4-C |
1a |
0 |
013501-76-3 |
(3-chloropropyl)diethoxymethylsilane |
No |
56% |
EC C4-A |
1a |
6 |
002530-87-2 |
3-chloropropyltrimethoxysilane |
No |
43% |
OECD 301 B |
1 |
-7 |
005089-70-3 |
(3-chloropropyl)triethoxysilane |
No |
46% |
EC C4-C |
1a |
-21 |
002344-80-1 |
Chloromethyltrimethylsilane |
No |
6% |
OECD 301D |
1a |
6 |
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