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EC number: 273-728-1
CAS number: 69012-28-8
By-product of the manufacture of ferromanganese alloy containing primarily oxides of aluminum, manganese and silicon.
Table 2.1: Concentrations and observations (preliminary test)
1.1 x 10-3
excess test material present
1.01 x 10-2
The preliminary estimate of water solubility was less than 0.0011 g/L as
Definitive test: Table 2.2: The mean concentration (g/L) of manganese
and the mean equivalent test material concentration (g/L) in the sample
ICP Analysed Mn conc (mg/L)
Sample solution Mn conc corrected for dilution (g/L)
Equivalent test material conc (g/L)
1.4 x 10^-4
5.3 x 10^-4
8.2 x 10^-5
3.1 x 10^-4
7.1 x 10^-5
2.7 x 10^-4
1.3 x 10^-4
5.0 x 10^-4
1.2 x 10^-4
4.6 x 10^-4
The water solubility of the test material was determined in a study
which was conducted under GLP conditions and in accordance with the
standardised guideline EU Method A.6.
Under the conditions of the study the water solubility of the test
material was determined to be 1.2 x 10^-4 g/L of manganese in solution
at 20 ± 0.5°C. This was equivalent to 4.3 x 10^-4 g/L of test material
in solution at 20.0 ± 0.5°C based on the manganese content of the test
Water solubility = 0.43 mg/L at 20.0 ± 0.5°C, EU Method A.6 (flask method), Butler & O'Connor (2009)
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