Abstract: A bioactive agent in which the bioactive effectiveness of ferrous iron salt and/or ferric ferrous iron salt contained therein is stabilized, making long term preservation possible, so that the bioactive agent can be useful as an original solution for medical use, as a soil conditioner, or the like. An iron-magnesium mixture solution is provided in the invention, wherein the iron-magnesium mixture solution is produced by mixing an aqueous solution containing a ferrous iron salt and/or a ferric ferrous iron salt in a concentration of not less than 0.5 mol/L as iron in the ferrous iron salt and/or the ferric ferrous iron salt, and an aqueous solution containing a magnesium salt in a concentration of not less than 0.2 mol/L as magnesium in the magnesium salt.

Abstract: The object of the invention is to provide a bioactive agent in which the bioactive effectiveness of ferric iron salt and/or ferric ferrous iron salt contained therein is stabilized, making long term preservation possible, so that the bioactive agent can be useful as an original solution for medical use, as a soil conditioner, or the like. An iron-magnesium mixture solution is provided in the invention, wherein the iron-magnesium mixture solution is produced by mixing an aqueous solution containing a ferric iron salt and/or a ferric ferrous iron salt in a concentration of not less than 0.5 mol/L as iron in the ferric iron salt and/or the ferric ferrous iron salt, and an aqueous solution containing a magnesium salt in a concentration of not less than 0.2 mol/L as magnesium in the magnesium salt.

Abstract: The object of the present invention is to stabilize bioactivation of iron salt. Said object is attained by adding a magnesium salt to said iron salt. Said iron salt stabilized by said magnesium salt is useful as medicine to treat incurable diseases such as diabetes and growth promoting agent of animals and plants.

Abstract: The subject of the present invention is to provide a bioactivator which is useful as a medicine, growth promoting agent for plants and animals, and the like, wherein the bioactive effectiveness of a ferric salt is reinforced and stabilized. One or more kind of vitamin selected from a group consisting of vitamins C, E and K is (are) added to a ferric salt as an anti-oxidizing and bioactivity reinforcing agent, with a magnesium salt being further added as a stabilizer.

Abstract: An object of the present invention is to efficiently remove foam produced in water by the aeration. Further, another object of the present invention is to improve water and air. Said objects can be attained by providing a foam removing apparatus consisting of a core having a spiral groove on its surface and a cylinder in which said core is inserted, and an air-water treating apparatus consisting of an outer cylinder, an inner cylinder inserted in said outer cylinder, a block having gas permeability inserted in said inner cylinder, and a core inserted in said inner cylinder and disposed above said permeable block, to which block an air introducing pipe connecting from the outside, and on the surface of said core a spiral groove being formed.

Abstract: The object of the present invention is to easily produce water having fine clusters and containing little chlorinated material. Said object is attained by a water treating apparatus consisting of a cylindrical body having a water inlet at the upper end and a water outlet at the lower end wherein a water passage is longitudinally formed in said cylindrical body, and a blade member is arranged in said cylindrical body and gives water passing through said water passage revolution force and shear force.

Abstract: A water treating apparatus consisting of a water path having entrance(s) and exit(s) and ceramic grain(s) movably inserted in said water path is provided in the present invention. When water is put in said water path of said water treating apparatus, said ceramic grains may be moved and rolled by the pressure of said water flowing in said water path and said moving and rolling ceramic grains may disturb the flow of said water to intensify the effectiveness of water treatment by said ceramic grains.

Abstract: An aqueous solution containing a new ferric ferrous salt Fe.sub.2 Cl.sub.5 and a method of producing the same are provided. Said aqueous solution contianing said Fe.sub.2 Cl.sub.5 may include both the aqueous solution of said Fe.sub.2 Cl.sub.5 and the aqueous mixture of said Fe.sub.2 Cl.sub.5 and a salt of alkali metals or a compound containing a metal which belongs to zinc family. A method of producing said Fe.sub.2 Cl.sub.5 comprises dissolving ferric chloride into aqueous solution of sodium hydroxide and then neutralizing said resulting aqueous solution by hydrochloric acid or dissolving ferrous sulfate into aqueous solution of hydrochloric acid, and a method of producing said aqueous mixture comprises adding said Fe.sub.2 Cl.sub.5 into an aqueous solution of strong acid and then adding a salt of alkali metals or a compound containing a metal which belongs to zinc family. Said aqueous solution containing said Fe.sub.2 Cl.sub.

Abstract: A compound containing ferric ferrous salt and a producing method thereof are provided in the present invention. Said compound comprises ferric ferrous salt and a salt of alkaline metals or a compound containing a metal which belongs to zinc family, and said producing method of said compound comprises adding ferric ferrous salt into an aqueous solution of strong acid and then adding a salt of alkaline metals or a compound containing a metal which belongs to zinc family. Said compound containing ferric ferrous salt may be very useful in a wide variety of fields, such as water cleaning, keeping freshness of vegetation, antisepsis, antifungi, antibacteria, rust preventing, effluent treatment, soil improvement, ionization control, feed enriching, petroleum improvement, antistatic technique, and the like.