Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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).