Magnesium Oxide Media

Granular Magnesium Oxide Mineral Utilized to raise pH of acidic water (pH 4.0 to 5.5).  A granular magnesium oxide mineral, specifically designed for potable and non-potable water treatment and certified to NSF Standard 60 for Drinking Water Chemicals. Identifiers: CAS Number: 1309-48-4 Molecular Formula: MgO Molecular Weight: 40.3044 g/mol Physical and Chemical Properties: Color: Grayish White Density: 75 lbs./cu. ft. Effective Size: 1.27 mm Uniformity Coefficient: 1.48 Active Material: 84-90% Composition: MgO 97% minimum NSF Certified Packaging: 50 lb. bag pH Adjustment  at Chlorinated Sites Bacteria are very sensitive to low pH.  The optimal pH for bioremediation is between 6 and 8.5.  Most microbial processes associated with the breakdown of electron donors tend to lower pH by the production of acidic fermentation products such as carbon dioxide and volatile fatty acids.  Conversely, some microbial processes such as the reduction of sulfur stimulated by an electron donor can i