Quote:
Originally Posted by fmu65
Thank you, I will! I just did a little reading up on it, and the product labelling is extremely misleading. It does say muriate of potash, but it gives a chemical symbol of K2O. Wow, and this is from Espoma, who is supposed to be a decent company. I need to get out the chem textbooks and brush up.
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For people who don't want to brush up on chemistry, that's ok -- overall in this thread it won't be necessary!
By law the potash content must be listed as K2O equivalent -- so the label is correct. It would be nice if also somewhere on the bag it gave percentage by weight of Chlorine.
For example, there is an inorganic supplement I use in the spring called monopotassium phosphite which has the chemical formula KH2PO4. On the label however, the potassium content is listed as 20% K2O equivalent.