MAKING SALT GREEN. “Next, gather some twigs, place them in the hollow box so that two parts of the cavity are below and one part above, coat the copper sheets on each side with pure honey over which you sprinkle pounded salt…pour warm vinegar or hot urine until a third part of it is filled. You should place this wooden container in a place where you can cover it on every side with dung. After four weeks take off the cover and whatever you find on the copper scrape off and keep.” (ie: approximately sodium chloride plus copper in acid makes copper chloride CuCl2).
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linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022