Registration Dossier
Registration Dossier
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EC number: 233-141-3 | CAS number: 10043-67-1
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.112 mg/L
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 1.1 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.011 mg/L
- Assessment factor:
- 500
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 63 mg/L
- Assessment factor:
- 10
Sediment (freshwater)
- Hazard assessment conclusion:
- no exposure of sediment expected
Sediment (marine water)
- Hazard assessment conclusion:
- no exposure of sediment expected
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- no exposure of soil expected
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Aluminum chemistry in natural water is extremely complex. Aluminum combines readily with a
number of elements and the resulting compounds may appear as both solid and dissolved forms.
Therefore, special attention must be paid to other ions found in the water to which alum is applied
and especially how these ions interact with the Al +3 ion and the AI(OH)3(s) polymer.
pH, interaction with other ions, concentration of substance are some factors which influence the both forms:
solid or dissolved.
Based on the physical-chemical properties of the substance and results of ecotoxicological information
(short-term and long-term aquatic toxicity of fish , aquatic invertebrates, aquatic algae/cyanobacteria,
toxicity to microoorganisms and terrestrial toxicity data) the substance is not classified for
environment according EU regulation EU 1272/2008 and EU regulation 286/2011 (2. ATP).
Conclusion on classification
The substance aluminium potassium bis(sulphate) is not classified for environment according CLP regulation EU 1272/2008
and EU regulation 286/2011 (2. ATP).
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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