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EC number: 254-400-7 | CAS number: 39290-78-3
- 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
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- not specified
- Adequacy of study:
- weight of evidence
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- secondary literature
- Remarks:
- Data comes from a secondary source, accepted as a reliable data source; however does not refer directly to the property of concern under the present point, therefore reliability cannot be granted.
- Reason / purpose for cross-reference:
- reference to other study
- Principles of method if other than guideline:
- unspecified
- Remarks on result:
- other: Essentially zero. (ref.5)
- Conclusions:
- Very low volatility expected.
- Executive summary:
A reference database provides different melting point values for aluminium sulphate, showing that the hydrated form looses the crystallisation water, before the anhydrous form decomposes at 770°C. This confirms that the vapour pressure is expected to be very low, essentially zero as stated in the same database, and likely below the measurable range (10E-10 Pa).
- Endpoint:
- vapour pressure
- Type of information:
- not specified
- Adequacy of study:
- weight of evidence
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- secondary literature
- Remarks:
- Data does not refer to the parent substance nor directly to the property of concern under the present point, therefore reliability cannot be granted.
- Principles of method if other than guideline:
- unspecified
- Remarks on result:
- not determinable because of methodological limitations
- Remarks:
- VP expected negligible as decomposition before mp at 300°C
- Conclusions:
- Very low volatility expected.
- Executive summary:
Litterature provides melting point data for aluminium hydroxide, with a decomposition value (water loss) of 300°C. Based on this property, the vapour pressure is expected to be very low, and likely below the measurable range (10E-10 Pa).
- Endpoint:
- vapour pressure
- Type of information:
- not specified
- Adequacy of study:
- weight of evidence
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- secondary literature
- Remarks:
- Data comes from a secondary source, containing only basic data without references therefore reliability cannot be granted.
- Principles of method if other than guideline:
- unspecified
- Temp.:
- 20 °C
- Vapour pressure:
- < 10 Pa
- Conclusions:
- Low volatility.
- Executive summary:
Litterature provides data for aluminium hydroxide, with a limit vapour pressure value of less than 10 Pa at ambient temperature.
- Endpoint:
- vapour pressure
- Type of information:
- not specified
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Remarks:
- Data from a secondary source, accepted as a reliable data source according to Chapter R.7a of REACH Guidance on information requirements and chemical safety assessment, adequate for assessment. Restrictions apply as no experimental details and purity is not specified.
- Reason / purpose for cross-reference:
- reference to other study
- Principles of method if other than guideline:
- unspecified
- Temp.:
- 58.4 °C
- Vapour pressure:
- 1 Pa
- Temp.:
- 76.5 °C
- Vapour pressure:
- 10 Pa
- Temp.:
- 97.1 °C
- Vapour pressure:
- 100 Pa
- Temp.:
- 120.7 °C
- Vapour pressure:
- 1 kPa
- Temp.:
- 148.2 °C
- Vapour pressure:
- 10 kPa
- Temp.:
- 180.5 °C
- Vapour pressure:
- 100 kPa
- Conclusions:
- Low volatility.
- Executive summary:
Litterature provides data for aluminium chloride between 58 and 180°C, showing a vapour pressure of less than 1 Pa at ambient temperature.
- Endpoint:
- vapour pressure
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- weight of evidence
- Reason / purpose for cross-reference:
- read-across source
- Reason / purpose for cross-reference:
- read-across source
- Reason / purpose for cross-reference:
- read-across source
- Reason / purpose for cross-reference:
- read-across source
- Temp.:
- 25 °C
- Vapour pressure:
- < 1 Pa
- Remarks on result:
- other: literature value on aluminium chloride
- Temp.:
- 20 °C
- Vapour pressure:
- < 10 Pa
- Remarks on result:
- other: literature value on aluminium hydroxide
- Vapour pressure:
- ca. 0 Pa
- Remarks on result:
- other: literature value on aluminium sulphate
- Transition / decomposition:
- yes
- Transition temp.:
- ca. 300 °C
- Remarks on result:
- other: literature value on aluminium hydroxide; decomposes (water loss) without melting from 300°C. VP of the pure salt expected below the measuring range (<10E-10 Pa)
- Transition / decomposition:
- yes
- Transition temp.:
- ca. 770 °C
- Remarks on result:
- other: literature value on aluminium sulphate
- Conclusions:
- Very low volatility expected from analogues.
- Executive summary:
Based on the varying Cl/OH/SO4 ratio (UVCB), it was considered suitable to estimate the vapour pressure of the parent substance from pure aluminium chloride, pure aluminium hydroxide and pure aluminium sulphate.
Referenceopen allclose all
HSDB database provide data on melting point from several sources:
mp = 770°C, decomposes (ref.1) supposed anhydrous form
mp = 250°C, decomposes (ref.2) Melts when gradually heated; at 250 deg C loses its water
mp = 770°C, decomposes (ref.3)
mp = 86.5°C, decomposes (ref.4) Aluminum Sulphate Octadecahydrate
m.p. = 300°C (loses water)
Description of key information
From analogues, aluminium chloride hydroxide sulphate is anticipated to have negligible vapour pressure at ambient temperature.
Key value for chemical safety assessment
- Vapour pressure:
- 0.001 Pa
- at the temperature of:
- 20 °C
Additional information
No experimental value can be measured on aluminium chloride hydroxide sulphate, as the substance is only manufactured as aqueous solutions, which stabilises the composition. Based on the varying Cl/OH/SO4 ratio (UVCB), it was considered suitable to estimate the vapour pressure of the parent substance from pure aluminium chloride, aluminium hydroxide and aluminium sulphate. For the three analogue salts, literature provided indications of low vapour pressure, respectively <10 mPa at ambient temperature for chloride, mp ca 300°C with decomposition (meaning no measureable VP) for hydroxide, and mp ca 770°C with decomposition for sulphate. Therefore aluminium chloride hydroxide sulphate is also considered to have a very low vapour pressure.
However, a key value is required for purpose of CSA. As no realistic value can be provided, an arbitrary value of 0.001 Pa is proposed, in order to lie below the lower threshold of 0.01 Pa used by the risk assessment model.
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.
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