Re: Chromium toxicity- Chromite is Cr(III), not Cr(VI)

HIGH-GRADE NI-CU-PT-PD-ZN-CR-AU-V-TI DISCOVERIES IN THE "RING OF FIRE"

NI 43-101 Update (September 2012): 11.1 Mt @ 1.68% Ni, 0.87% Cu, 0.89 gpt Pt and 3.09 gpt Pd and 0.18 gpt Au (Proven & Probable Reserves) / 8.9 Mt @ 1.10% Ni, 1.14% Cu, 1.16 gpt Pt and 3.49 gpt Pd and 0.30 gpt Au (Inferred Resource)

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dvdgray

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Re: Chromium toxicity- Chromite is Cr(III), not Cr(VI)

posted on Feb 19, 2011 01:45AM

Different oxidation states; much different toxicity. Cr(VI) is the "bad stuff" about which the "Erin Brockovich" film was produced. Chromite (the mineral found in the RoF) is Cr(III). See http://en.wikipedia.org/wiki/Chromite_(compound)

Now, doing Chromium production is another matter. I am certain I wouldn't want a smelter in my back yard... FN take heed.