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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
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EC number: 233-135-0 | CAS number: 10043-01-3
- 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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Flash point
Administrative data
- Endpoint:
- flash point of flammable liquids
- Data waiving:
- study technically not feasible
- Justification for data waiving:
- the study does not need to be conducted because the substance is inorganic
- the study does not need to be conducted because the flash point is only relevant to liquids and low melting point solids
- Justification for type of information:
- JUSTIFICATION FOR DATA WAIVING
In accordance with section 2 of REACh Annex XI, flash point measurement does not apply to solids. Please refer to flammable solids under 4.13.
Moreover, in accordance with column 2 of REACH Annex VII, the flash point study does not need to be conducted for inorganics.
Cross-referenceopen allclose all
- Reason / purpose for cross-reference:
- data waiving: supporting information
Reference
- Physical state at 20°C and 1013 hPa:
- solid
Aluminium sulphate (anhydrous) is a white, odourless, solid.
Octadecahydrate and other hydrated forms are expected to be solid too (from literature and experiment on analogue).
A reliable literature source is provided for the reference substance (anhydrous form), and is considered as key data.
Supporting information on the common hydrated forms 18 and 14 H2O is extrapolated from literature and from description of an analogue in an experimental report.
- Reason / purpose for cross-reference:
- data waiving: supporting information
Reference
Aluminium sulphate (anhydrous) decomposes at 770°C (literature).
Hydrated forms undergo primary decomposition corresponding to crystal water loss from ca 80°C (from literature and experiment on analogue).
A reliable literature source is provided for the reference substance (anhydrous form), and is considered as key data. The same result was also found in numerous commonly used handbooks or databases, despite not peer reviewed. However the value of 770°C is associated with decomposition, and therefore will not be retained as key value for purpose of CSA (no solid-liquid transition).
A single, updated, reference handbook provides a non-consistent value, but as no details are available, the usual and lower value is retained.
Supporting information on the 18 H2O and on analogue in an experimental report show that the hydrated forms undergo primary decomposition corresponding to crystal water loss from ca 80°C.
- Reason / purpose for cross-reference:
- data waiving: supporting information
Reference
- Flammability:
- not classified
Not a flammable solid (no propagation of combustion if contact with a flame) (from analogue).
Not a self-heating substance (no exothermic reaction) (from analogue).
Not pyrophoric. Not flammable if contact with water. (waived)
No data is available on the reference substance (anhydrous form), but reliable experimental studies were conducted on analogue, showing no propagation of combustion regarding flammability of solids, and no exothermal reaction, i.e. no self-heating. Despite the test substance was an hydrated grade, the study is considered suitable for purpose, and then retained as key, because heating will vaporise the crystallisation water from 80°C, as shown under 4.2, leaving the parent compound.
Moreover, supporting literature data indicates that the substance is used as a fireproofing agent, therefore as a weight of evidence, it should not have flammable properties.
Based on experience, no flammable properties are anticipated if contact with air or water, therefore studies were deemed unnecessary.
According to Regulation (EC) No.1272/2008 (CLP) criteria, the substance as solid failed to propagate combustion in the preliminary test (UN N1 preliminary test identical to EC A10), therefore it is NOT classified as a flammable solid.
According to Regulation (EC) No.1272/2008 (CLP) criteria, no exothermal reaction was observed in the UN N4 test, therefore the substance is NOT classified as self-heating.
Data source
Materials and methods
Results and discussion
Applicant's summary and conclusion
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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