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  • What is that blue copper salt?

    From Oumati Asami@21:1/5 to All on Sun Sep 15 14:31:43 2019
    Many copper salts are blue. So, they can't be told by color.

    I have a piece of copper in the filter of a swimming pool. After a
    while, the surface turned blue. It can't be copper chloride because
    copper chloride is very soluble in water. What could it be?

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  • From Libor Striz@21:1/5 to Oumati Asami on Sun Sep 15 10:30:18 2019
    Oumati Asami <ouasami@do-not-send.com> Wrote in message:
    Many copper salts are blue. So, they can't be told by color.I have a piece of copper in the filter of a swimming pool. After a while, the surface turned blue. It can't be copper chloride because copper chloride is very soluble in water. What could it
    be?

    It could be a basic copper carbonate.
    2 minerals are based on it, malachite and azurite.

    https://en.wikipedia.org/wiki/Malachite
    https://en.wikipedia.org/wiki/Azurite

    --
    Poutnik ( the Wanderer )

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