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Diss Factsheets
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EC number: 951-962-1 | 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
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Oxidising properties
Administrative data
Link to relevant study record(s)
- Endpoint:
- oxidising solids
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2005-01-11 to 2005-01-14
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.17 (Oxidising Properties (Solids))
- Version / remarks:
- 1992
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- signed 2004-09-06
- Specific details on test material used for the study:
- - Name of test material (as cited in study report): Red Lead Optics Type; Lead tetraoxide
- Chemical name: Lead (II, IV)-oxide
- Producer: Penarroya Oxide GmbH, D-51063 Köln, Germany
- Physical state: Powder, red
- Analytical purity: 94.04 % Pb3O4
- Batch No.: 210327
- Expiration date of the batch: until 03/2005
- Storage condition of test material: Ambient temperature in tightly closed container
No further information on test material was stated. - Contact with:
- powdered cellulose
- Sample tested:
- reference mixture as specified
- Remarks:
- cellulose and barium nitrate
- Parameter:
- maximum burning rate
- Result:
- 0.98 mm/s
- Sample tested:
- test mixture as specified
- Remarks:
- cellulose and test material
- Parameter:
- maximum burning rate
- Result:
- 0.74 mm/s
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- The maximum burning rate of the mixtures of the test item and cellulose (0.74 mm/s) was less than the maximum burning rate of the reference mixture of cellulose and barium nitrate (0.98 mm/s). Due to this fact, the test substance has no oxidising properties.
Reference
Description of key information
Read-across from lead tetroxide:
The read-across approach used falls under RAAF Scenario 2: analogue approach for which the hypothesis is based on different compounds with the same type of effect.
The absence of effects obtained in a study conducted with the source substance, lead tetroxide, is used to predict the same absence of effects that would be observed in a study with the target substance if it were to be conducted.
Key value for chemical safety assessment
- Oxidising properties:
- non oxidising
Additional information
On the basis of read-across from lead tetroxide, together with long-term industrial handling experience, testing of lead oxide sulfate is not required, in accordance with Regulation (EC) No 1907/2006, Annex XI, Section 1.5: read-across of results and conclusion on classification for lead tetroxide to lead sulfate is justifiable, under RAAF scenario 2.
Justification for classification or non-classification
Lead sulphate does not require classification for oxidising properties based on a comparison of the intrinsic chemistry of the similair substances tested, orange lead, which was concluded "non oxidising". This "non oxidising" conclusion for lead sulfate is is also supported by long-term industrial handling experience of the substance.
In the sense of classification for supply and transport an oxidising solid is a solid which, while in itself not necessarily combustible, may - generally by yielding oxygen - cause or contribute to the combustion of other material. An oxidising agent is therefore normally found in one of its higher possible oxidation states.
A test according to EU Method A.17 was carried out on lead tetroxide (orange lead; Pb3O4) in 2005. From the test results it was concluded that orange lead does not exhibit oxidising properties.
In the test substance, the lead is present in two oxidation states +II and +IV. However, the lead in lead oxide sulfate is only in the oxidation state +II and is thus intrinsically less oxidising. Lead oxide sulfate also contains sulfur in the form of the sulfate ion, which is known to be only very weak as an oxidising agent, owing to the stability of the sulfur-oxygen bonds and the stability of the sulfate entity.
Based on the intrinsic chemistry of the substance and compared to the tested substance, lead tetroxide, it appears scientifically implausible that lead oxide sulfate would exhibit oxidising properties which would be sufficient for classification.
Furthermore, no oxidising properties have been observed throughout long-term industrial handling of the substance, and it is not classified for oxidising properties according to UN Transport regulations. Further testing is not required, in accordance with Regulation (EC) No 1907/2006, Annex VII, Section 7.13, Column 2 and Annex XI, Section 1.5.
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.
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