Bittern (salt)
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Bittern (pl. bitterns) is a bitter-tasting solution that remains after evaporation of halite (common salt) from brines and/or seawater. It is rich in magnesium chlorides, sulfates, bromides, iodides, and other chemicals present in the original waters.[1]
History
Bittern has been extracted for a long time, at least several centuries. The Dutch chemist Petrus Jacobus Kipp experimented with saturated solutions of bittern. The term for the solution is a modification of "bitter".[1]
Uses
Bittern is used in the culturing and flourishing of the Haloquadratum bacteria. It is also used in the extraction of epsom salts and other mineral salts.[1]
The solution can furthermore be used in the production of potash and potassium salts.[2]
Environmental impact
Bitterns, when as the product of salt production, appear to have no adverse effects on the environment. It comes from seawater and can safely be returned to the sea, although the bitterns are sometimes used in fertilizer instead.[3]
References
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