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Registration Dossier
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EC number: 273-729-7 | CAS number: 69012-29-9 By-product from the production of ferronickel from a complex ore. Consists primarily of oxides of aluminum, iron, magnesium and silicon.
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Slags, Ferronickel-manufg. is a UVCB substance that is known to consist of a number of metal oxides, and more specifically of iron, silicon, calcium, magnesium, chromium (III) and aluminium, as well as of small quantities of Nickel metal. Ferronickel slags do not contain water sensitive chemical bonds/groups that would suggest the ability to hydrolyse. The main components do not undergo hydrolysis.
The only constituent with water sensitive chemical bonds is elemental sulphur which is partially leached out by water and dissociates forming HS−, HSO4−and SO4=the species that predominate in the environment that might be found in nature. This indication is in agreement with the composition of all sulphur-containing minerals. However, the elemental content of sulphur in the ferronickel slag is not significant (maximum 0,6 w/w %)
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