Potash: The feminine word "potash" designates, sometimes in a confused way, several salts, solutes or compounds containing potassium:
- the potash or vegetable alkali of the Ancients, mainly based on potassium carbonate K2CO3. This is still the traditional name. Potash was used to make soft soaps and fertilizers.
- potash, which includes various starting ores from the potash industry, natural potash salts called sylvine KCl or sylvini...
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