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I am not a safety expert, or a chemist. Do not use this site as a primary source for safety, chemistry or disposal information.

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CobaltCompounds

  • Sulphate
  • Chloride "Cobalt chloride has been classified as a substance of very high concern by the European Chemicals Agency as it is a suspected carcinogen."2016-04-24
    • I believe that this chemical reacts with sodium carbonate to produce cobalt carbonate. You would have to wash it to get the extra sodium out of the solution if you were doing this to recover the cobalt. I did this in about 1996 to five pounds or so of the Chloride. My procedure was to dissolve the chloride in water. Then add an excess of sodium carbonate ( I calculated the amount needed) . This reduced the color of the solution to nearly clear after settling. Then I added more sodium carbonate and this made the solution clear. I decanted the water off the settled cobalt carbonate. I mixed up the cobalt carbonate again in a five gallon bucket, decanted it and then dried it out. I used it in one glaze until it was gone. I have no idea if this is safe or environmentally sound.

I am not a safety expert, or a chemist. Do not use this site as a primary source for safety, chemistry or disposal information.

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Page last modified on April 24, 2016, at 04:29 PM