• Question: What is the formula for ash?

    Asked by kamilo12 to clairemarieroberts, Faye, Martin, Mus, Pete on 27 Apr 2012.
    • Photo: Pete Etchells

      Pete Etchells answered on 27 Apr 2012:

      There’s no one single type of ash – it can come from different sources depending on what’s being burned. Wood ash is mostly made up of calcium carbonate and something called potash, which is mostly phosphate. Ash can also contain things like iron and copper, so there’s no easy formula for it!

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