Re: [RC] Howmuch Epsom Salt - Don HustonThank You Katrina,So the answer to my 77% question is "Oxygen" with a tiny amount of impurities. Is that correct? And a 1oz scoop (28g +/-) would provide 2.8grams of Mg and 3.6grams of S. Is that correct? Don Huston At 02:06 PM 11/3/2009 Tuesday, you wrote: Here are some data sheets on Epsom salt.
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