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Diss Factsheets
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EC number: 701-315-2 | CAS number: -
- 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 ecotoxological information
Administrative data
- Endpoint:
- additional ecotoxicological information
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Remarks:
- Solubility trials in ecotoxicity test media
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 016
- Report date:
- 2016
Materials and methods
- Principles of method if other than guideline:
- The study consisted of solubility trials used to determine the maximum solubility of the test item under different treatment regimes, suitable for ecotoxicology tests, with separate analysis of platinum and the organic ligand.
- GLP compliance:
- no
- Type of study / information:
- Solublity trial for ecotoxicity studies
Test material
- Reference substance name:
- 1,3-diethenyl-1,1,3,3- tetramethyldisiloxane and its platinum(0) complexes
- EC Number:
- 701-315-2
- IUPAC Name:
- 1,3-diethenyl-1,1,3,3- tetramethyldisiloxane and its platinum(0) complexes
- Test material form:
- liquid
Constituent 1
Results and discussion
Any other information on results incl. tables
Table 1: Measured DVTMDS (organic ligand) concentrations in aqueous samples
Sampling date | Incubation time (h) | Decanted (µg/L) |
Filtered (µg/L) |
Centrifuged (µg/L) |
Stock solution, shaken up (µg/L) |
|
19_09_2016 |
0 |
48.76 |
<LOQ |
2.25 |
- |
|
20_09_2016 |
24 |
2.41 |
<LOQ |
<LOQ |
7.13 |
|
21_09_2016 |
48 |
<LOQ |
<LOQ |
<LOQ |
6.12 |
|
22_09_2016 |
72 |
<LOQ |
<LOQ |
<LOQ |
4.13 |
|
23_09_2016 |
96 |
<LOQ |
<LOQ |
<LOQ |
2.74 |
|
Table 2 Measured Pt concentrations in aqueous samples
Sampling date | Incubation time (h) | Decamted Pt conc (µg/L) |
Filtered Pt conc (µg/L) |
Centrifuged Pt conc (µg/L) |
|
19_09_2016 |
0 |
45.164 |
3.901 |
6.474 |
|
20_09_2016 |
24 |
7.466 |
4.480 |
5.173 |
|
21_09_2016 |
48 |
6.554 |
5.377 |
9.432 |
|
22_09_2016 |
72 |
9.208 |
6.988 |
8.123 |
|
23_09_2016 |
96 |
7.025 |
5.561 |
6.188 |
Applicant's summary and conclusion
- Conclusions:
- Following 96 hour solubility trials, the organic ligand could only be detected in a very small number of samples at the start of the study and platinum could be detected at very low concentrations.
- Executive summary:
96 hour solubility trials were conducted using test media representative of that used in ecotoxicity studies (Cu-free water with adjusted pH 6, as this reflects the lowest pH acceptable for an algae test with the highest expected solubility), and three methods of separation (filtration, centrifugation and settling by gravity) (Kotthoff 2016). Samples were taken at 24 hour intervals; platinum was analysed by ICP-MS and the organic ligand by GC-MS. The study does not follow a standard test guideline and is not GLP-compliant, but is used as supporting information for the ecotoxicity endpoints for this substance.
The organic ligand was only detected at levels >LOQ in one of the centrifuged samples at the start of the test, and was not detected in any of the filtered samples. Platinum was detected at low levels (3.901 - 9.43 µg/L for filtered and centrifuged samples). Concentrations were higher for the decanted samples, but this is believed to be due to the presence of undissolved test item.
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