User talk:143.106.23.149

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Hi, I saw that you made these changes to the copper(II) sulfate page. Can you let us know the source of your information, since it is very different to what was there? I can add it in as a citation if you like. You can reply here, or on my talk page, or best is probably Talk:Copper(II) sulfate. Thanks for your help! Walkerma 13:35, 12 April 2007 (UTC)