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ORC TECHNICAL BULLETIN # IIIA <br /> Oxygen Release Compound,ORC® <br /> Environmentally Safe <br /> With reference to the safety of contacting ORC with ground water the following review <br /> is provided. REGENESIS welcomes any further inquiries which can be directed to <br /> either Dr. Stephen Koenigsberg (VP Research) or John Griffiths (President). <br /> Definition of ORC and its Components: <br /> ORC is a proprietary formulation of magnesium peroxide (MgO,), which is the active <br /> agent. The product contains both magnesium oxide (magnesia, MgO) and magnesium <br /> peroxide. A few percent of food grade potassium phosphate (KH2PO4 or K2HPO4) is also <br /> present. <br /> Behavior of ORC in Contact with Water: <br /> ORC is designed to release oxygen when wet. Essentially ORC is "oxygenated magnesia" <br /> and it gives up the oxygen upon contact with water. The spent magnesium peroxide is _ <br /> converted to magnesium hydroxide (Mg(011)0. This also is the fate of the magnesium <br /> oxide which simply hydrates to form the hydroxide (MgO + H2O-+Mg(OH)2). Therefore, <br /> the uniform.endpoint of ORC, from both directions, is magnesium hydroxide. The safety <br /> of this material is easily conveyed by mention of the fact that a suspension of magnesium <br /> hydroxide in water is ordinary Milk of Magnesia. The levels of phosphates from the <br /> product are low and they are the same materials that are used to support microbial growth <br /> for bioremediation. <br /> Other Features: <br /> All of the magnesium products discussed are virtually totally insoluble. <br /> The ORC is mixed with an inert carrier matrix and contained in a filter sock that is <br /> removable from the source well at will. <br /> Magnesium oxide, peroxide and hydroxide are all safe to ingest in small quantities. <br /> Magnesium oxide is sold as an magnesium supplement for cattle and is used as a fertilizer <br /> material. <br />