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  1. #21
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    Oleum, the gloopy stuff is thick like glycerine. Don't add water to it, add it to water. The only exception is when you are removing it from yourself. It must be washed away as rapidly as possible with as much water as possible. Don't step on the spot on the floor until you neutralize it with bicarbonate of soda. I saw a guy do that once and he ate a hole through his shoe.

    PE

  2. #22

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    Quote Originally Posted by Ole View Post
    Variation B uses 50g potassium bisulfate instead,
    so no nasty acid. ... Copper sulfate bleaches work
    just fine, q.v. Tim Rudman's toning book.
    Or a little less of sodium bisulfate. Sulfuric acid; often
    replaceable with a bisulfate. Dan

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