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Diss Factsheets
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EC number: 241-012-8 | CAS number: 16941-92-7
- 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
Oxidising properties
Administrative data
Link to relevant study record(s)
- Endpoint:
- oxidising solids
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Study period:
- 03 November 2010 to 22 December 2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP Compliant, guideline study, available as unpublished report, acceptable with restrictions
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- other: Regulation (EC) No 1272/2008 Classification, Labelling and Packaging of Substances and Mixtures, using a procedure designed to be compatible with Test O.1 of United Nations Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria
- Deviations:
- yes
- Remarks:
- electrical resistance of ignition wire was 3.9 Ω/m, rather than 6.0 ± 0.5 Ω/m as specified in Test O.1. Physical parameters of wire and power dissipation met method specifications therefore the deviation had no effect on the test.
- GLP compliance:
- yes (incl. QA statement)
- Contact with:
- other: cellulose
- Duration of test (contact time):
- 3 min
- Sample tested:
- other: not specified (migrated information)
- Parameter:
- other: not specified (migrated information)
- Remarks on result:
- other: result not specified (migrated information)
- Remarks:
- The results indicate that the test item is not an oxidising solid.
- Interpretation of results:
- other: Test item has been deternmined not be an oxidising solid, as both the 4:1 and 1:1 test item to cellulose test mixtures failed to ignite during the 3 minutes that the power was applied
- Conclusions:
- Rhodium triiodide has been determined not be an oxidising solid as both the 4:1 and 1:1 test item to cellulose test mixtures failed to ignite during the 3 minutes that the power was applied.
- Executive summary:
This is a GLP compliant, guideline study considered suitable for use as the key study for this endpoint. Rhodium triiodide has been determined not be an oxidising solid as both the 4:1 and 1:1 test item to cellulose test mixtures failed to ignite during the 3 minutes that the power was applied
Reference
Results of 3:7 (by mass) reference mixture Potassium bromate and cellulose | ||
Test Number | Burning time (s) | Observations |
1 | 147 | Orange and blue flame, spitting and spluttering leaving a dark grey ash |
2 | 139 | Orange and blue flame, spitting and spluttering leaving a dark grey ash |
3 | 116 | Orange and blue flame, spitting and spluttering leaving a dark grey ash |
4 | 133 | Orange and blue flame, spitting and spluttering leaving a dark grey ash |
5 | 145 | Orange and blue flame, spitting and spluttering leaving a dark grey ash |
Mean | 136 | |
Results of 4:1(by mass) test item and cellulose mixture | ||
1 | - | Dark grey smoke, no sign of ignition during the 3 minutes the power was applied |
2 | - | Dark grey smoke, no sign of ignition during the 3 minutes the power was applied |
3 | - | Dark grey smoke, no sign of ignition during the 3 minutes the power was applied |
4 | - | Dark grey smoke, no sign of ignition during the 3 minutes the power was applied |
5 | - | Dark grey smoke, no sign of ignition during the 3 minutes the power was applied |
Results of 1:1 (by mass) test item and cellulose mixture | ||
1 | - | Grey smoke, no sign of ignition during the 3 mintues the power was applied |
2 | - | Grey smoke, no sign of ignition during the 3 mintues the power was applied |
3 | - | Grey smoke, no sign of ignition during the 3 mintues the power was applied |
4 | - | Grey smoke, no sign of ignition during the 3 mintues the power was applied |
5 | - | Grey smoke, no sign of ignition during the 3 mintues the power was applied |
The 4:1 and 1:1 test item:cellulose mixtures did not ignite and burn during the 3 minutes that the power was applied indicating test item is not an oxidising solid.
Description of key information
Based on read across from rhodium triiodide, hexachloroiridic acid, hydrogen hexachloroiridate (IV) is not considered to be oxidising.
Key value for chemical safety assessment
- Oxidising properties:
- no
Additional information
The oxidising properties of hexachloroiridic acid, hydrogen hexachloroiridate (IV) are read across from other substances with halogen ligands or counter ions in the 3+ oxidation state (rhodium triiodide). This substance is not oxidising based on GLP-compliant, guideline experimental study (Atwal and Tremain 2011). There is also supplementary evidence that other metal chlorides are also not oxidizing. For example, other Group VIII transition metals such as cobalt (II) chloride, iron (II), iron (III) and nickel (II) chloride. Copper (I) chloride from the adjacent Group IB is also not classified for oxidizing properties. There is therefore no evidence that any transition metal chloride is an oxidant. Supplementary evidence also comes from the non-transition metal chlorides and there is no evidence from two centuries of industrial and academic experience that these substances are oxidants.
On the basis of read-across hexachloroiridic acid, hydrogen hexachloroiridate (IV) is not classified as an oxidising solid
Justification for classification or non-classification
Based on read across from a GLP-compliant, guideline study with rhodium triiodide, hexachloroiridic acid, hydrogen hexachloroiridate (IV) is not classified for oxidising properties.
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