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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.
The acute dermal toxicity of tSiMn slag was investigated in a study which was conducted in accordance with the standardised guideline EU Method B.3.
Under the conditions of the study the acute dermal median lethal dose (LD50) of the test material in male and female rats was determined to be greater than 2000 mg/kg bw.
Since the study was conducted with silicomanganese slag, rather than with the registered substance itself, it has been assigned a reliability score of 2 in line with the criteria of Klimisch (1997). Use of data generated with silicomanganese slag, to address information requirements of ferromanganese slag, is considered to be justified on the basis of the similar compositions of the two substances. Both substances are UVCB substances, containing metallic oxides; each substance is obtained as a by-product in the manufacture of SiMn and FeMn alloy, respectively.
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