Soluble magnesium hydroxide

Details Soluble magnesium hydroxide Soluble magnesium hydroxide

1996-08-26

1999-04-06

Valentine, Donald R.

Electrolysis: processes, compositions used therein, and methods

Electrolytic synthesis

Preparing inorganic compound

205538, 423164, 423166, 423555, 423638, C25B 120, C01F 100, C01F 540, C01F 1146

Patent

active

058913203

ABSTRACT:
A clear solution and a method for preparing the solution which has a pH in the range of from 10 to 13.9 and containing sulfate ions in a concentration range less than 500 parts per million. The solution is prepared by mixing two solutions in which one solution has one equivalent of magnesium sulfate and an equivalent of sulfuric acid and the second solution has an equivalent of Ca (OH).sub.2 and two equivalents of K.sub.2 OH. It is believed that CaSO.sub.4 precipitates in the mixed solution and causes coprecipitation of potassium, perhaps as double salt with the Ca leaving OH stabilized by hydration and magnesium ions.

REFERENCES:
patent: 3705090 (1972-12-01), Bergeron et al.
patent: 3785943 (1974-01-01), Eberle et al.
patent: 4670114 (1987-06-01), Beer et al.
patent: 4917724 (1990-04-01), Sharma
patent: 5384017 (1995-01-01), Lumbroso

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