Registration Dossier
Registration Dossier
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EC number: 233-141-3 | CAS number: 10043-67-1
Bioaccumulation: aquatic / sediment
Administrative data
Link to relevant study record(s)
Description of key information
Study scientifically unjustified.
In aqueous solution the substance is completely dissolved and dissociated in the cations Al3+, K+ and the anion SO42- which are dissociation
products of Aluminium sulfate and Potassium sulfate which have low bioaccumulation potential (log Kow<3). Therefore the log Kow of the substance
should be very low (log Kow<3). The BCF values of aluminium of most fish are < 300 and depends on pH. Cleveland et al. (1991) reported that the estimated steady-state bioconcentration factors (BCF) for aluminium in brook trout were 215, 123, and 36 at pH 5.3, 6.1, and 7.2, respectively. When transferred to water of the same pH without added aluminium, brook trout eliminated aluminium from tissues more rapidly at pH 5.3 than at pH 6.1 and 7.2. Based on the low log Kow and the BCF values of aluminium sulfate and aluminium and a therefore assumed low potential of bioaccumulation and adsorption of aluminium potassium bis sulphate, no further tests on the substance should be necessary(REACH regulation EU 1907/2006 Annex IX column 2).
Key value for chemical safety assessment
- BCF (aquatic species):
- 215 dimensionless
Additional information
Study scientifically unjustified.
In aqueous solution the substance is completely dissolved and dissociated in the cations Al3+, K+ and the anion SO42- which are dissociation products of Aluminium sulfate and Potassium sulfate which have low bioaccumulation potential (log Kow < 3). Therefore the log Kow of the substance should be very low (log Kow<3). The BCF values of aluminium of most fish are < 300 and depends on pH. Cleveland et al. (1991) reported that the estimated steady-state bioconcentration factors (BCF) for aluminium in brook trout were 215, 123, and 36 at pH 5.3, 6.1, and 7.2, respectively. When transferred to water of the same pH without added aluminium, brook trout eliminated aluminium from tissues more rapidly at pH 5.3 than at pH 6.1 and 7.2. Based on the low log Kow and the BCF values of aluminium sulfate and aluminium and a therefore assumed low potential of bioaccumulation and adsorption of aluminium potassium bis sulphate, no further tests on the substance are required (REACH regulation EU 1907/2006 Annex IX column 2).
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