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Star Mine Operations, LLC Revenue Mine MCP Plan 2012 <br />3.2.12 Frother Aerofroth 70 — Liquid <br />Aerofroth 70 should be stored in a cool, dry place. It should be kept at room temperature and away from <br />heat and flame. <br />Aerofroth 70 is considered to be stable. It flashes at 102 degrees F. Strong oxidizing agents, strong <br />acids and alkalis should be avoided. If it decomposes, it may produce carbon dioxide and/or carbon <br />monoxide. <br />3.2.13 Sodium Bisulfate — Granular <br />Sodium Bisulfate should be stored in a cool, dry place. The container should be kept closed when not in <br />use. The aqueous solutions cannot be stored in aluminum, carbon steel, copper, copper alloys, and zinc <br />or nickel containers. <br />Sodium Bisulfate is considered stable under normal pressures and temperatures. It is hygroscopic: it <br />will absorb moisture or water from the air. Generating dusts, excess heat, exposure to moist air and <br />water should be avoided. It is incompatible with metals, strong bases, alcohols, and the aqueous <br />solution is corrosive to aluminum. Decomposition may produce oxides of sulfur. <br />3.2.14 Copper Sulfate — Granular <br />Copper Sulfate should be stored in rightly closed containers in a cool, dry, well - ventilated area away <br />from incompatible substances. It should be protected from moisture. <br />Copper Sulfate is considered to be stable at room temperatures in closed containers. High temperatures, <br />dust generations and exposure to moist air or water should be avoided. It is incompatible with strong <br />bases, hydroxylamine, and magnesium. Decomposition may produce oxides of sulfur and copper fumes. <br />3.2.15 Dowfroth 250 Frother — Liquid <br />Dowfroth 250 should be stored in a cool, dry, well- ventilated area. <br />Dowfroth 250 is considered stable under normal temperatures and pressures. Contact with oxidizing <br />materials should be avoided. <br />3.3 Containment <br />The unloading area, storage area and mill area all have been designed to maximize containment of a spill <br />or release. The unloading pad construction is discussed in Section 3.1. The Mill Area includes the <br />storage area for the chemicals. From both the portal and intersection with the Main Revenue Drift, the <br />tunnels slope at a 1% grade away from these intersections. Both tunnels slope to a common sump at the <br />back of the Mill Area. This sump has a 3,000 gallon capacity to contain any potential release from the <br />12 <br />