Registration Dossier
Registration Dossier
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

Flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- flammability, other
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Remarks:
- Data from a peer-reviewed handbook, 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 not an experimental result.
- Conclusions:
- No flammability hazard anticipated, as used as fireproofing agent.
- Executive summary:
A reference handbook, also cited in a reference database, provides a list of main uses of the substance, including fireproofing of clothes.
- Endpoint:
- pyrophoric solids
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because the substance is known to be stable in contact with air at room temperature for prolonged periods of time (days) and hence, the classification procedure does not need to be applied
- Justification for type of information:
- JUSTIFICATION FOR DATA WAIVING
In accordance with section 1 of REACh Annex XI, study for pyrophoric properties is deemed unnecessary, based on the experience in handling, testing and use of the substance. - Endpoint:
- substances / mixtures which in contact with water emit flammable gases
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because the experience in production or handling shows that the substance does not react with water, e.g. the substance is manufactured with water or washed with water
- the study does not need to be conducted because the substance is known to be soluble in water to form a stable mixture
- Justification for type of information:
- JUSTIFICATION FOR DATA WAIVING
In accordance with section 1 of REACh Annex XI, study for flammability if contact with water is deemed unnecessary, based on the experience in handling, testing and use of the substance. - Endpoint:
- flammable solids
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Justification for type of information:
- The test substance is aluminium sulphate basic, of formula Al2 (OH)0.16 (SO4)2.92, and not pure aluminium sulphate Al2 (SO4)3; however, according to the notifier, limited basicity may occur in the technical substance. Therefore, the chemical similarity (only 0.8% OH) is considered sufficient for supporting data on the hydrated form, the reference substance for the REACh registration dossier being the anhydrous form.
- Reason / purpose for cross-reference:
- read-across source
- Interpretation of results:
- not classified based on GHS criteria
- Conclusions:
- The substance is NOT classified as a Flammable Solid, based on CLP criteria.
- Executive summary:
From analogue, no propagation of ignition is anticipated.
- Endpoint:
- flammable solids
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 09 March 2010- 04 June 2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- This study has been performed according to UN and EC guidelines and according to GLP principles. Test substance is adequately characterised. Therefore full validation applies.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.10 (Flammability (Solids))
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- UN Manual of Tests and Criteria: Test N.1 (Test method for readily combustible solids)
- Version / remarks:
- 2003
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Interpretation of results:
- not classified based on GHS criteria
- Conclusions:
- The test item is NOT classified as a flammable solid according to Regulation (EC) N°1272/2008 (CLP) criteria.
- Executive summary:
The substance was tested for its flammable properties, according to EU A10/UN N1 guideline, and under GLP.
Test material has been determined to be not highly flammable as it failed to propagate ignition in the preliminary screening test.
- Endpoint:
- self-heating substances / mixtures
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Justification for type of information:
- The test substance is aluminium sulphate basic, of formula Al2 (OH)0.18 (SO4)2.91, and not pure aluminium sulphate Al2 (SO4)3; however, according to the notifier, limited basicity may occur in the technical substance. Therefore, the chemical similarity (only 0.9% OH) is considered sufficient for supporting data on the hydrated form, the reference substance for the REACh registration dossier being the anhydrous form.
- Reason / purpose for cross-reference:
- read-across source
- Key result
- Test procedure:
- 100 mm sample cube at 140°C
- Max. temp. reached:
- 140
- Induction time (h):
- 24
- Result:
- negative outcome (no effect observed)
- Interpretation of results:
- not classified based on GHS criteria
- Conclusions:
- The substance is NOT classified as self-heating, based on CLP criteria.
- Executive summary:
From analogue, no exothermic reaction is anticipated in UN N4 test conditions.
- Endpoint:
- self-heating substances / mixtures
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 09 March 2010- 04 June 2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- This study has been performed according to UN guideline and according to GLP princip les. Test substance is adequately characterised. Therefore full validation applies.
- Qualifier:
- according to guideline
- Guideline:
- UN Manual of Tests and Criteria: Test N.4 (Test method for self-heating substances)
- Version / remarks:
- 2003
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Key result
- Test procedure:
- 100 mm sample cube at 140°C
- Max. temp. reached:
- 140
- Induction time (h):
- 24
- Result:
- negative outcome (no effect observed)
- Interpretation of results:
- not classified based on GHS criteria
- Conclusions:
- The test substance is ‘not a self-heating substance’.
- Executive summary:
The self-heating potential of aluminium sulphate basic hydrated was investigated according to UN N4 guideline. No exothermic reaction was observed. The test substance temperature did not exceed 200°C (i.e. a rise of more than 60°C above the oven temperature). Therefore this test was considered negative. No changes were observed in the appearance of the test substance.
The test is relevant for classification according to CLP criteria.
Referenceopen allclose all
Uses:
In contact with the flame of the gas burner, the test substance melted and glowed. After removal of the ignition source, no propagation of combustion of the test substance along 200 mm length of the pile within 4 minutes was observed. According to the guidelines performance of the burning rate test is not required. Based on the results obtained the test substance is considered ‘not highly flammable’.
No exothermic reaction was observed. The test substance temperature did not exceed 200°C (i.e. a rise of more than 60°C above the oven temperature). Therefore this test was considered negative. No changes were observed in the appearance of the test substance.
Based on this, the test substance is ‘not a self-heating substance’.
Description of key information
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)
Key value for chemical safety assessment
- Flammability:
- not classified
Additional information
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.
Justification for classification or non-classification
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.
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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