potash (redirected from Nitrium (potash))

pot·ash (ptsh)

n.

1. Any of several compounds containing potassium, especially soluble compounds such as potassium oxide and various potassium sulfates, used chiefly in fertilizers.

2. See potassium carbonate.

3. See potassium hydroxide.

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potash, potassa

chemically speaking, potassium hydrate, a strong caustic. In farming terms, potassium carbonate as it is mixed into fertilizers to redress a deficiency of potassium in the soil.