Re: pinhole hexavalent chromium

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From: NFetter@aol.com
Date: Sat Jul 09 2005 - 16:54:09 PDT

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From: NFetter@aol.com
Message-ID: <145.48e532e0.3001bda1@aol.com>
Date: Sat, 9 Jul 2005 19:54:09 EDT
Subject: Re: pinhole hexavalent chromium

Hi Geoff,
Hexavalent Cr simply means the chromium ion can form 6 covalent bonds with
any species the can donate a pair of electrons. Water is a good example, In HOH,
the oxygen atom has two unshared electron pairs in the Lewis model.
Neil Fetter

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