Potassium monopersulfate compositions and process for preparing

Details Potassium monopersulfate compositions and process for preparing Potassium monopersulfate compositions and process for preparing

1985-09-04

1986-04-01

Straub, Gary P.

Chemistry of inorganic compounds

Sulfur or compound thereof

Oxygen containing

C01B 1506, C01B 1508

Patent

active

045797250

ABSTRACT:
A storage stable salt melting at 80.degree. to 150.degree. C. having the formula (KHSO.sub.5).sub.x (KHSO.sub.4).sub.y (K.sub.2 SO.sub.4).sub.z where x+y+z=1, and x=0.4-0.97, preferably 0.60-0.85; y=0.03-0.60, preferably 0.15-0.40; z=0-0.10, preferably 0-0.3; and y is .gtoreq.z, which is treated with 1.0-9.0% of a basic magnesium compound which is MgCO.sub.3, Mg(OH).sub.2, MgO or mixtures thereof is disclosed. The salt is prepared by neutralizing Caro's acid with a basic potassium compound to form a reaction mixture. Water is evaporated from the reaction mixture at 15.degree. to 35.degree. C. using a vacuum of 2-15 mm Hg absolute pressure to form up to 40 wt. % crystals. The crystals are separated, treated with a basic magnesium compound, dried, and further treated with a basic magnesium compound.

REFERENCES:
patent: 2901318 (1959-08-01), D'Addieco et al.
patent: 2901319 (1959-08-01), D'Addieco
patent: 3036885 (1962-05-01), Muller et al.
patent: 3041139 (1962-05-01), D'Addieco

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