Registration Dossier
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: 231-131-3 | CAS number: 7440-22-4
- 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

Additional information on environmental fate and behaviour
Administrative data
- Endpoint:
- additional information on environmental fate and behaviour
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP-compliant, guideline study. Fully adequate for assessment.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 013
- Report date:
- 2013
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: OECD Series on Testing and Assessment No. 29
- Deviations:
- no
- GLP compliance:
- yes
- Remarks:
- With the exception of the ICP-MS and TOC analysis
- Type of study / information:
- Transformation/dissolution results
Test material
- Reference substance name:
- Silver
- EC Number:
- 231-131-3
- EC Name:
- Silver
- Cas Number:
- 7440-22-4
- Molecular formula:
- Ag
- IUPAC Name:
- silver
- Test material form:
- other: wire
- Details on test material:
- -Test item name: Silver wire
- CAS number: 7440-22-4
- ECTX-Consult number: T0105/01
- Purity: 99.99%
- Form: Solid wire (38mm by 2 mm diameter)
- Surface area: 3.14 mm2 (surface of 1 wire end), 9.42 mm2 (surface of 3 wire ends), 28.3 mm2 (surface of 9 wire ends)
- Relative density: 10.49
- Storage conditions: Room temperature in the dark
- Expiry date: Stable over time
Constituent 1
Results and discussion
Any other information on results incl. tables
Summarised results of the measured silver concentrations on days 7 and 28 - transformation/dissolution of silver wire (massive) at 100 rpm at pH 8.
| 7 d | 28 d | ||
Loading (mg/L) | X ± S (µg/L) | CV (%) | X ± S (µg/L) | CV (%) |
3 | <0.02 | - | <0.02 | - |
9 | <0.02 | - | <0.02 | - |
27 | <0.02 | - | 0.03 ± 0.07 | 237 |
Applicant's summary and conclusion
- Conclusions:
- Concentrations of silver were below or close to the detection limit of 0.02 µg/L Ag during the 28 days at pH 8 of the test for surface equivalent loading of 3 and 9 mg/L silver wire (massive) as well as the second two replicates with surface equivalent loading of 27 mg/L. However, a steady increase of dissolved silver concentration could be observed in the first replicate during the last three weeks of testing (average of 0.11 ± 0.01 µg/L Ag, CV: 6%).
- Executive summary:
The Transformation/Dissolution of silver wire (massive) at pH 8 was determined following OECD guideline 29. Loading of 3, 9 and 27 mg/L Ag surface equivalent were exposed to aqueous test medium for 28 days and the dissolved silver concentration was determined by ICP-MS analysis.
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.

Route: .live1