chemisch
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suggestions on disposing of used sodium silicate containing cobalt
I have alot of sodium silicate waste contaminated with cobalt and other salts. I was thinking of trying to get a percipitant but i dont want to
generate anything damgerous because acids from my brief research seems to yeild some extremely flammable chemicals not fun so any suggestions would be
greatly appreciated
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bfesser
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Fuse to glass, dispose of in trash.
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99chemicals
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Agreed. Evaporate then put in plastic bags and trash.
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Vargouille
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I don't see anything flammable from what you've mentioned. It's just a chemical garden, correct? Just add an excess of sodium bicarbonate to
precipitate any remaining metal ions, filter, and trash. Or, if you're a skinflint like me, keep to recycle into more useful metal salts.
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chemisch
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i was thinking of attempting to dissociate something from the solution to reduce more that was my hopes. but if you are sure the sodium bicarbonate
would precipitate all the cobalt that would be fabulous thanks
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Vargouille
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Sodium bicarbonate should precipitate most of the cobalt ions as cobalt carbonate, with a little hydroxide contamination. After that, what little
cobalt is left in solution is mostly harmless. Look up the "solubility product" for cobalt carbonate, cobalt hydroxide, cobalt phosphate, and cobalt
sulfide, and how to calculate it, to see why it's very difficult to remove all the cobalt.
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